1. What is the discovery of C.V.Raman?
2. What are the fundamental forces in nature?
3. Which of the following has symmetry?
4. a)Acceleration due to gravity. b)Law of gravitation
6. What is the contribution of S. Chandra Sekhar to Physics?
7. Distinguish between accuracy and precision .
8. How can systematic errors be minimized or eliminated?
9. Distinguish between fundamental units and derived unit .
10. What is dimensional analysis?
11. The states of motion and rest are relative. Explain.
12. How is average velocity different from instantaneous velocity?
13. Give an example where the velocity of an object is zero but its acceleration is not zero.
14. Give an example of one –dimensional motion where a particle moving along the positive x-direction comes to rest periodically and moves forward
15. The vertical component of a vector is equal to its horizontal component. what is the angle made by the vector with x-axis?
16. Two forces of magnitude 3 units and 5 units act at 60 degrees with each other. What is the magnitude of their resultant?
17. A = I + j. what is the angle between the vector and x – axis ?
18. When two right angled vectors of magnitude 7 units and 24 units combine, what is the magnitude of their resultant?
19. What is the acceleration of a projectile at the top of its trajectory?
20. Define unit vector, null vector and positive vector.
21. What is inertia? What gives the measure of inertia?
22. When a bullet is fired from a gun the gun gives a kick in the backward direction. Explain.
23. If a bomb at rest explodes into two pieces, the pieces must travel in opposite directions. Explain.
24. Define force.What are the basic forces in nature?
25. Can the coefficient of friction be greater than one?
26. Why does the car with a flattened tyre stop sooner than the one with inflated tyres?
27. What happens to the coefficient of friction if the weight of the body is doubled?
28. State the conditions under the force do not work.
29. State the relation between the kinetic energy and momentum of a body.
30. A body freely falling from a certain height “h”, after striking a smooth floor rebounds and h rises to a height h/2. What is the coefficient of restitution between the floor and the body?
31. Distinguish between the conservative and non-conservative forces with one example each.
32. Is it necessary that a mass should be present at center of mass of any system?
33. Why are spokes provided in a bicycle wheel?
34. We cannot open or close the by applying force at the hinges. Why?
35. By spinning eggs on a table top, how will you distinguish an hardboiled egg from a raw egg?
36. Why should a helicopter necessarily have two propellers?
37. Give two examples of periodic motion which are not oscillatory.
38. A girl is swinging seated in a swing. What is the effect on the frequency of oscillation if she stands?
39. The bob is simple pendulum is made of wood. What will be the effect on the time period if the wooden bob is replaced by an identical bob of aluminum?
40. Will a pendulum clock gain or lose time when taken to the top of a mountain?
41. A pendulum clock gives correct time at the equator. Will it gain or lose time if it is taken to the poles? If so, why ?
42. What happens to the energy of a simple harmonic oscillator if its amplitude is doubled?
43. Can a simple pendulum be used in an artificial satellite?
44. State the unit and dimension of universal gravitational constant (G).
45. As we go from one planet to another, how will a) the mass and b) the weight of a body change?
46. “Hydrogen is in abundance around the sun but not around earth”. Explain.
47. What are polar satellites?
48. Define viscosity. What are its units units and dimensions?
49. What is the principle behind the carburetor of an automobile?
50. What is magnus effect?
51. Why are drops and bubbles spherical?
52. Give the expression for the excess pressure in a liquid drop.
53. Give the expression for the excess pressure in an air bubble inside the liquid.
54. What are water proofing agents and water wetting agents? What do they do?
55. What is angle of contact?
56. When water flows through a pipe, which of the layer moves fastest and slowest?
57. Distinguish between heat and temperature.
58. Can a substance contact on heating? Give an example.
59. Why are gaps left between rails on a railway track?
60. Why do liquids have no linear and areal expansions?
61. What is latent heat of fusion?
62. What is latent heat of vaporization?
63. Why are utensils coated black? Why is the bottom of the utensils made of copper?
64. State weins displacement law.
65. Ventilators are provided in rooms just below the roof. Why?
66. State the different modes of transmission of heat. Which of these modes require medium?
67. Define coefficient of thermal conductivity and temperature gradient.
68. What is greenhouse effect? Explain global warming.
69. State Newton’s law of cooling.
70. State the conditions under which Newton’s law of cooling is applicable.
71. The roofs of buildings are painted white during summer. Why?
72. Define Thermal equilibrium. How does it lead to Zeroth law of Thermodynamics?
73. Define Calorie. What is the relation between calorie and mechanical equivalent of heat?
74. Define specific heat capacity of the substance. On what factors does it depend?
75. Why a heat engine with 100% efficiency can never be realized in practice?
76. In summer, when the value of a bicycle tube is opened, the escaping air appears cold. Why?
77. Can a room be cooled by leaving the door of an electric refrigerator open?
78. A thermo flask containing a liquid is shaken vigorously. What happens to its temperature?
79. How much will be the internal energy change in i)Isothermal process ii) adiabatic process
80. Explain the following processes i) Isochoric process ii) Isobaric process
81. Define mean path.
82. When does a real gas behave like an ideal gas?
83. State Boyle’s law and Charles law.
84. State Dalton’s law of partial pressures.
85. Explain the concepts of degree of freedom for molecules of a gas.
86. The absolute temperature of a gas is increased 3 times. What will be the increase in rms velocity of the gas molecule?
2. If |a+b|=|a-b|, prove that the angle between a and b is 900.
3. Show that the trajectory of an object thrown at certain angle with the horizontal is a parabola.
4. Explain the terms the average velocity and instantaneous velocity. When are they equal?
5. Show that the maximum height and range of a project are U2sin2Ѳ/2g and U2sin2 Ѳ/g respectively where the terms have their regular meanings.
6. Define the terms momentum and impulse. State and explain the law of conservation of linear momentum. Give examples.
7. Why are shock absorbers used in motor cycle and cars?
8. Explain advantages and disadvantages of friction.
9. Mention the methods used to decrease or reduced friction.
10. State the law of rolling friction.
11. Why is pulling the lawn roller preferred to pushing it?
12. State Newton’s second law of motion. Hence, derive the equation of motion F=ma from it
13. Show that in the case of one dimensional elastic collision, the relative velocity of approach of two colliding bodies before collision is equal to the relative velocity of separation after collision.
14. Show that two equal masses undergo oblique elastic will move at right angles after collision, if the second body initially at rest.
15. Derive an expression for the height attained by a freely falling body after “n” number of rebounds from the floor.
16. Explain the law of conservation of energy.
17. Distinguish between centre of mass and centre of gravity.
18. Explain about the centre of mass of earth-moon system and its rotation around the sun.
19. Define vector product. Explain the properties of a vector product with two examples.
20. Define angular velocity v = r ω.
21. Obtain an equation for the frequency of oscillation of spring of force constant k to which a mass m is attached.
22. Derive expression for the kinetic for the kinetic energy and potential energy of a simple harmonic oscillator.
23. How does the energy of a simple pendulum vary as it moves from one extreme position to the other during its oscillation?
24. Derive the expression for displacement. Velocity and acceleration of a particle executes S.H.M.
25. State kepler’s laws of planetary motion.
26. Derive the relation between acceleration due to gravity (g) at the surface of a planet and Gravitational constant (G).
27. How does the acceleration due to gravity (g) change for the same values of height (h) and depth (d)?
28. What is orbital velocity? Obtain an expression for it.
29. What is escape speed? Obtain an expression for it
30. What is geostationary satellite? State it uses.
31. Define Young’s modulus, Bulk modulus and Shear modulus Y:
32. Define stress and explain the type of stress.
33. Define strain and explain the type of strain.
34. Define strain energy and derive the equation for the same.
35. Describe the behavior of a wire under gradually increasing load.
36. State Pascal’s law and verify it with help of an experiment.
37. Explain how pressure varies with depth.
38. What is Reynold’s number? What is its significance?
39. Explain dynamic lift with examples.
40. Explain Surface Tension and Surface energy.
41. Explain Celsius and Fahrenheit scales of temperature. Obtain the relation between Celsius and Fahrenheit scales of temperature.
42. Pendulum clocks generally go fast in winter and slow in summer. Why?
43. In what way is the anomalous behavior of water advantageous to aquatic animals?
44. Explain conduction, convection, and radiation with examples.
45. State and explain first law of thermodynamics.
46. Derive a relation between the two specific heat capacities of gas on the basis of first law of thermodynamics.
47. Obtain the expression for the work done by an ideal gas during isothermal change.
48. Obtain the expression for the work done by an ideal gas during adiabatic change and explain.
49. Compare isothermal and an adiabatic process.
50. Write a short note on Quasi-static process.
51. Explain qualitatively the working of a heat engine.
52. Explain the kinetic interpretation of Temperature.
53. Explain the concepts of absolute zero of temperature on the basic of kinetic theory
54. Prove that the average kinetic energy of a molecule of an ideal gas is directly proportional to the absolute temperature of the gas
55. What is the ratio of r.m.s speed of Oxygen and Hydrogen molecules at the same temperature?
56. Four molecules of a gas have speeds 1, 2, 3 and 4 km/s. find the rms speed of the gas molecule.
57. When a pressure increase by 2%, what is percentage decrease in the volume of a gas, assuming Boyle’s law is obeyed?
Bhagavan Data entering 8019859891
2. Develop the nations of work and kinetic energy and show that it leads to work energy theorem.
3. What are collisions? Explain the possible types of collision? Develop the theory of one dimensional collision.
4. State the prove law of conservation of energy in case of a freely falling body.
5. State and parallel axes theorem
6. State and prove perpendicular axes theorem.
7. State and prove the principle of conservation of angular momentum. Explain the principle of conservation of angular momentum with examples.
8. Define simple harmonic motion. Show that the motion of (point) projection of a particle performing uniform circular motion, on any diameter is simple harmonic.
9. Show that the motion of a simple pendulum is simple harmonic and hence derive an equation for its time period. What is second’s pendulum?
10. Derive the equation for the kinetic energy and potential energy of a simple harmonic oscillator and show that the total energy of a particle in simple harmonic motion is constant at any point on its path.
11. Define gravitational potential energy and derive an expression for it associated with two particles of masses m1and m2.
12. Derive an expression for the variation of acceleration due to gravity (a) above and (b) below the surface of the Earth.
13. State Newton’s Universal law of Gravitation. Explain how the value of the Gravitational constant (G) can be determined by Cavendish method.
14. Define Hooke’s law of elasticity and describes an experiment to determine the Young’s modulus of the material of a wire.
15. State Bernoulli’s principle. From conservation of energy in a fluid flow through a tube, arrive at Bernoulli’s equation. Give an applicable of Bernoulli’s theorem.
16. Explain thermal conductivity and coefficient of thermal conductivity. A copper bar of thermal conductivity 401 W (mk) has one end at 104degree Celsius and the other end at 24 degree Celsius. The length of the bar is0.10 m and the cross-section area is 1.0 what is the rate of heat conduction along the bar?
17. State the explain Newton’s law of cooling. State the conditions under which Newton’s law of cooling is applicable. A body cools down from 60 to 50 degree Celsius in 5 minutes and to 40 degree Celsius in another 8 minutes. Find the temperature of the surroundings.
18. Explain the reversible and irreversible processes. Describe the working of Carnot engine. Obtain an expression for the efficiency.
19. State Newton’s law of thermodynamics. How is heat engine different from a refrigerator?
20. Derive an expression for the pressure of an ideal gas in a container from kinetic Theory and hence give kinetic interpretation of Temperature.
Bhagavan Data entering 8019859891
2. What are the fundamental forces in nature?
3. Which of the following has symmetry?
4. a)Acceleration due to gravity. b)Law of gravitation
6. What is the contribution of S. Chandra Sekhar to Physics?
7. Distinguish between accuracy and precision .
8. How can systematic errors be minimized or eliminated?
9. Distinguish between fundamental units and derived unit .
10. What is dimensional analysis?
11. The states of motion and rest are relative. Explain.
12. How is average velocity different from instantaneous velocity?
13. Give an example where the velocity of an object is zero but its acceleration is not zero.
14. Give an example of one –dimensional motion where a particle moving along the positive x-direction comes to rest periodically and moves forward
15. The vertical component of a vector is equal to its horizontal component. what is the angle made by the vector with x-axis?
16. Two forces of magnitude 3 units and 5 units act at 60 degrees with each other. What is the magnitude of their resultant?
17. A = I + j. what is the angle between the vector and x – axis ?
18. When two right angled vectors of magnitude 7 units and 24 units combine, what is the magnitude of their resultant?
19. What is the acceleration of a projectile at the top of its trajectory?
20. Define unit vector, null vector and positive vector.
21. What is inertia? What gives the measure of inertia?
22. When a bullet is fired from a gun the gun gives a kick in the backward direction. Explain.
23. If a bomb at rest explodes into two pieces, the pieces must travel in opposite directions. Explain.
24. Define force.What are the basic forces in nature?
25. Can the coefficient of friction be greater than one?
26. Why does the car with a flattened tyre stop sooner than the one with inflated tyres?
27. What happens to the coefficient of friction if the weight of the body is doubled?
28. State the conditions under the force do not work.
29. State the relation between the kinetic energy and momentum of a body.
30. A body freely falling from a certain height “h”, after striking a smooth floor rebounds and h rises to a height h/2. What is the coefficient of restitution between the floor and the body?
31. Distinguish between the conservative and non-conservative forces with one example each.
32. Is it necessary that a mass should be present at center of mass of any system?
33. Why are spokes provided in a bicycle wheel?
34. We cannot open or close the by applying force at the hinges. Why?
35. By spinning eggs on a table top, how will you distinguish an hardboiled egg from a raw egg?
36. Why should a helicopter necessarily have two propellers?
37. Give two examples of periodic motion which are not oscillatory.
38. A girl is swinging seated in a swing. What is the effect on the frequency of oscillation if she stands?
39. The bob is simple pendulum is made of wood. What will be the effect on the time period if the wooden bob is replaced by an identical bob of aluminum?
40. Will a pendulum clock gain or lose time when taken to the top of a mountain?
41. A pendulum clock gives correct time at the equator. Will it gain or lose time if it is taken to the poles? If so, why ?
42. What happens to the energy of a simple harmonic oscillator if its amplitude is doubled?
43. Can a simple pendulum be used in an artificial satellite?
44. State the unit and dimension of universal gravitational constant (G).
45. As we go from one planet to another, how will a) the mass and b) the weight of a body change?
46. “Hydrogen is in abundance around the sun but not around earth”. Explain.
47. What are polar satellites?
48. Define viscosity. What are its units units and dimensions?
49. What is the principle behind the carburetor of an automobile?
50. What is magnus effect?
51. Why are drops and bubbles spherical?
52. Give the expression for the excess pressure in a liquid drop.
53. Give the expression for the excess pressure in an air bubble inside the liquid.
54. What are water proofing agents and water wetting agents? What do they do?
55. What is angle of contact?
56. When water flows through a pipe, which of the layer moves fastest and slowest?
57. Distinguish between heat and temperature.
58. Can a substance contact on heating? Give an example.
59. Why are gaps left between rails on a railway track?
60. Why do liquids have no linear and areal expansions?
61. What is latent heat of fusion?
62. What is latent heat of vaporization?
63. Why are utensils coated black? Why is the bottom of the utensils made of copper?
64. State weins displacement law.
65. Ventilators are provided in rooms just below the roof. Why?
66. State the different modes of transmission of heat. Which of these modes require medium?
67. Define coefficient of thermal conductivity and temperature gradient.
68. What is greenhouse effect? Explain global warming.
69. State Newton’s law of cooling.
70. State the conditions under which Newton’s law of cooling is applicable.
71. The roofs of buildings are painted white during summer. Why?
72. Define Thermal equilibrium. How does it lead to Zeroth law of Thermodynamics?
73. Define Calorie. What is the relation between calorie and mechanical equivalent of heat?
74. Define specific heat capacity of the substance. On what factors does it depend?
75. Why a heat engine with 100% efficiency can never be realized in practice?
76. In summer, when the value of a bicycle tube is opened, the escaping air appears cold. Why?
77. Can a room be cooled by leaving the door of an electric refrigerator open?
78. A thermo flask containing a liquid is shaken vigorously. What happens to its temperature?
79. How much will be the internal energy change in i)Isothermal process ii) adiabatic process
80. Explain the following processes i) Isochoric process ii) Isobaric process
81. Define mean path.
82. When does a real gas behave like an ideal gas?
83. State Boyle’s law and Charles law.
84. State Dalton’s law of partial pressures.
85. Explain the concepts of degree of freedom for molecules of a gas.
86. The absolute temperature of a gas is increased 3 times. What will be the increase in rms velocity of the gas molecule?
4 MARKS
1. State parallelogram law of vectors. Derive an expression for the magnitude and direction of the resultant vector.2. If |a+b|=|a-b|, prove that the angle between a and b is 900.
3. Show that the trajectory of an object thrown at certain angle with the horizontal is a parabola.
4. Explain the terms the average velocity and instantaneous velocity. When are they equal?
5. Show that the maximum height and range of a project are U2sin2Ѳ/2g and U2sin2 Ѳ/g respectively where the terms have their regular meanings.
6. Define the terms momentum and impulse. State and explain the law of conservation of linear momentum. Give examples.
7. Why are shock absorbers used in motor cycle and cars?
8. Explain advantages and disadvantages of friction.
9. Mention the methods used to decrease or reduced friction.
10. State the law of rolling friction.
11. Why is pulling the lawn roller preferred to pushing it?
12. State Newton’s second law of motion. Hence, derive the equation of motion F=ma from it
13. Show that in the case of one dimensional elastic collision, the relative velocity of approach of two colliding bodies before collision is equal to the relative velocity of separation after collision.
14. Show that two equal masses undergo oblique elastic will move at right angles after collision, if the second body initially at rest.
15. Derive an expression for the height attained by a freely falling body after “n” number of rebounds from the floor.
16. Explain the law of conservation of energy.
17. Distinguish between centre of mass and centre of gravity.
18. Explain about the centre of mass of earth-moon system and its rotation around the sun.
19. Define vector product. Explain the properties of a vector product with two examples.
20. Define angular velocity v = r ω.
21. Obtain an equation for the frequency of oscillation of spring of force constant k to which a mass m is attached.
22. Derive expression for the kinetic for the kinetic energy and potential energy of a simple harmonic oscillator.
23. How does the energy of a simple pendulum vary as it moves from one extreme position to the other during its oscillation?
24. Derive the expression for displacement. Velocity and acceleration of a particle executes S.H.M.
25. State kepler’s laws of planetary motion.
26. Derive the relation between acceleration due to gravity (g) at the surface of a planet and Gravitational constant (G).
27. How does the acceleration due to gravity (g) change for the same values of height (h) and depth (d)?
28. What is orbital velocity? Obtain an expression for it.
29. What is escape speed? Obtain an expression for it
30. What is geostationary satellite? State it uses.
31. Define Young’s modulus, Bulk modulus and Shear modulus Y:
32. Define stress and explain the type of stress.
33. Define strain and explain the type of strain.
34. Define strain energy and derive the equation for the same.
35. Describe the behavior of a wire under gradually increasing load.
36. State Pascal’s law and verify it with help of an experiment.
37. Explain how pressure varies with depth.
38. What is Reynold’s number? What is its significance?
39. Explain dynamic lift with examples.
40. Explain Surface Tension and Surface energy.
41. Explain Celsius and Fahrenheit scales of temperature. Obtain the relation between Celsius and Fahrenheit scales of temperature.
42. Pendulum clocks generally go fast in winter and slow in summer. Why?
43. In what way is the anomalous behavior of water advantageous to aquatic animals?
44. Explain conduction, convection, and radiation with examples.
45. State and explain first law of thermodynamics.
46. Derive a relation between the two specific heat capacities of gas on the basis of first law of thermodynamics.
47. Obtain the expression for the work done by an ideal gas during isothermal change.
48. Obtain the expression for the work done by an ideal gas during adiabatic change and explain.
49. Compare isothermal and an adiabatic process.
50. Write a short note on Quasi-static process.
51. Explain qualitatively the working of a heat engine.
52. Explain the kinetic interpretation of Temperature.
53. Explain the concepts of absolute zero of temperature on the basic of kinetic theory
54. Prove that the average kinetic energy of a molecule of an ideal gas is directly proportional to the absolute temperature of the gas
55. What is the ratio of r.m.s speed of Oxygen and Hydrogen molecules at the same temperature?
56. Four molecules of a gas have speeds 1, 2, 3 and 4 km/s. find the rms speed of the gas molecule.
57. When a pressure increase by 2%, what is percentage decrease in the volume of a gas, assuming Boyle’s law is obeyed?
Bhagavan Data entering 8019859891
8 MARKS
1. Define Angle of friction and Angle of repose. Show that angle of friction is equal to angle of repose for a rough inclined plane.2. Develop the nations of work and kinetic energy and show that it leads to work energy theorem.
3. What are collisions? Explain the possible types of collision? Develop the theory of one dimensional collision.
4. State the prove law of conservation of energy in case of a freely falling body.
5. State and parallel axes theorem
6. State and prove perpendicular axes theorem.
7. State and prove the principle of conservation of angular momentum. Explain the principle of conservation of angular momentum with examples.
8. Define simple harmonic motion. Show that the motion of (point) projection of a particle performing uniform circular motion, on any diameter is simple harmonic.
9. Show that the motion of a simple pendulum is simple harmonic and hence derive an equation for its time period. What is second’s pendulum?
10. Derive the equation for the kinetic energy and potential energy of a simple harmonic oscillator and show that the total energy of a particle in simple harmonic motion is constant at any point on its path.
11. Define gravitational potential energy and derive an expression for it associated with two particles of masses m1and m2.
12. Derive an expression for the variation of acceleration due to gravity (a) above and (b) below the surface of the Earth.
13. State Newton’s Universal law of Gravitation. Explain how the value of the Gravitational constant (G) can be determined by Cavendish method.
14. Define Hooke’s law of elasticity and describes an experiment to determine the Young’s modulus of the material of a wire.
15. State Bernoulli’s principle. From conservation of energy in a fluid flow through a tube, arrive at Bernoulli’s equation. Give an applicable of Bernoulli’s theorem.
16. Explain thermal conductivity and coefficient of thermal conductivity. A copper bar of thermal conductivity 401 W (mk) has one end at 104degree Celsius and the other end at 24 degree Celsius. The length of the bar is0.10 m and the cross-section area is 1.0 what is the rate of heat conduction along the bar?
17. State the explain Newton’s law of cooling. State the conditions under which Newton’s law of cooling is applicable. A body cools down from 60 to 50 degree Celsius in 5 minutes and to 40 degree Celsius in another 8 minutes. Find the temperature of the surroundings.
18. Explain the reversible and irreversible processes. Describe the working of Carnot engine. Obtain an expression for the efficiency.
19. State Newton’s law of thermodynamics. How is heat engine different from a refrigerator?
20. Derive an expression for the pressure of an ideal gas in a container from kinetic Theory and hence give kinetic interpretation of Temperature.
Bhagavan Data entering 8019859891
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