Page 1 Physics 1. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is (a) 22.4 rn/s (b) 112 m/s (c) (0.64 * 40)/ (1000 * 100) m/s (d) 1000 m/s 2. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is (a) 280 km/s (b) 56.0 km/s (c) 112 km/s (d) 56 km/s 3. Light travels faster in air than that in glass. This is accordance with (a) wave theory of light (b) corpuscular theory of light (c) neither (a) nor (b) (d) Both (a) and (b) 4. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v 1 and v 2 respectively. If A is the cross section area of the wing and p is the density of air, then the upward life is (a) 1/2 A(v ? 2 â€”v 2 ) (b) 1/2 A(v ? 1 + v 2 ) (c) 1/2 A(v ? 1 2 â€” v 2 2 ) (d) 1/2 A(v ? 1 2 + v 2 2 ) 5. A body is thrown with a velocity of 9.8 m/s making an angle of 30° with the horizontal. It will hit the ground after a time (a) 1.5s (b) 1s (c) 3s (d) 2s 6. A radioactive element 90 X 238 decays into 83 Y 222 The number of -particles emitted are ß Page 2 Physics 1. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is (a) 22.4 rn/s (b) 112 m/s (c) (0.64 * 40)/ (1000 * 100) m/s (d) 1000 m/s 2. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is (a) 280 km/s (b) 56.0 km/s (c) 112 km/s (d) 56 km/s 3. Light travels faster in air than that in glass. This is accordance with (a) wave theory of light (b) corpuscular theory of light (c) neither (a) nor (b) (d) Both (a) and (b) 4. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v 1 and v 2 respectively. If A is the cross section area of the wing and p is the density of air, then the upward life is (a) 1/2 A(v ? 2 â€”v 2 ) (b) 1/2 A(v ? 1 + v 2 ) (c) 1/2 A(v ? 1 2 â€” v 2 2 ) (d) 1/2 A(v ? 1 2 + v 2 2 ) 5. A body is thrown with a velocity of 9.8 m/s making an angle of 30° with the horizontal. It will hit the ground after a time (a) 1.5s (b) 1s (c) 3s (d) 2s 6. A radioactive element 90 X 238 decays into 83 Y 222 The number of -particles emitted are ß (a) 1 (b) 2 (c) 4 (d) 6 7. Minimum excitation potential of Bohrâ€™s first orbit in hydrogen atom is (a) 3.6V (b) 10.2 V (c) 13.6 V (d) 3.4V 8. A gas expands 0.25 m 3 at constant pressure 10 3 N/m 2 , the work done is (a) 250 N (b) 250W (c) 250 J (d) 2.5 erg 9. The work done in increasing the size of a soap film for 10 cm x 6m to 10 cm x 11cm is 3 x 10 - 4 J. The surface tension of the film is (a) 1.0 x 10 -2 N/m (b) 6.0 x 10 -2 N/m (c) 3.0 x 10 -2 N/m (d) 1.5 x 10 -2 N/m 10. A parallel palte condenser is filled with two dielectrics as shown in figure. Area of each pate is A m 2 and the separation is d metre. The dielectric constants are K 1 and K 2 respectively. Its capacitance in farad will be Page 3 Physics 1. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is (a) 22.4 rn/s (b) 112 m/s (c) (0.64 * 40)/ (1000 * 100) m/s (d) 1000 m/s 2. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is (a) 280 km/s (b) 56.0 km/s (c) 112 km/s (d) 56 km/s 3. Light travels faster in air than that in glass. This is accordance with (a) wave theory of light (b) corpuscular theory of light (c) neither (a) nor (b) (d) Both (a) and (b) 4. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v 1 and v 2 respectively. If A is the cross section area of the wing and p is the density of air, then the upward life is (a) 1/2 A(v ? 2 â€”v 2 ) (b) 1/2 A(v ? 1 + v 2 ) (c) 1/2 A(v ? 1 2 â€” v 2 2 ) (d) 1/2 A(v ? 1 2 + v 2 2 ) 5. A body is thrown with a velocity of 9.8 m/s making an angle of 30° with the horizontal. It will hit the ground after a time (a) 1.5s (b) 1s (c) 3s (d) 2s 6. A radioactive element 90 X 238 decays into 83 Y 222 The number of -particles emitted are ß (a) 1 (b) 2 (c) 4 (d) 6 7. Minimum excitation potential of Bohrâ€™s first orbit in hydrogen atom is (a) 3.6V (b) 10.2 V (c) 13.6 V (d) 3.4V 8. A gas expands 0.25 m 3 at constant pressure 10 3 N/m 2 , the work done is (a) 250 N (b) 250W (c) 250 J (d) 2.5 erg 9. The work done in increasing the size of a soap film for 10 cm x 6m to 10 cm x 11cm is 3 x 10 - 4 J. The surface tension of the film is (a) 1.0 x 10 -2 N/m (b) 6.0 x 10 -2 N/m (c) 3.0 x 10 -2 N/m (d) 1.5 x 10 -2 N/m 10. A parallel palte condenser is filled with two dielectrics as shown in figure. Area of each pate is A m 2 and the separation is d metre. The dielectric constants are K 1 and K 2 respectively. Its capacitance in farad will be 11. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an upright image of the object coincident with it (a) 30 cm (b) 60 cm (c) 50 cm (d) 12 cm 12. A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The maximum value of R is given by (a) 0.5O (b) 1.00O (c) 2.0O (d) 0.25O 13. For a R/C v gas = 0.67. This gas is made up of cv molecules which are (a) mono atomic (b) poly atomic (c) mixture of diatomic and poly atomic molecules (d) diatomic 14. A point source of light is placed 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc which should be placed over the source on the surface of water to cut-off all light coming out of water is (a) 6 m (b) 3 m (c) 4 m (d) 2 m 15. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 m and stick to it. Now the combined mass starts to move. What will be the combined velocity? (a) 4 km/h (b) 1 km/h Page 4 Physics 1. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is (a) 22.4 rn/s (b) 112 m/s (c) (0.64 * 40)/ (1000 * 100) m/s (d) 1000 m/s 2. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is (a) 280 km/s (b) 56.0 km/s (c) 112 km/s (d) 56 km/s 3. Light travels faster in air than that in glass. This is accordance with (a) wave theory of light (b) corpuscular theory of light (c) neither (a) nor (b) (d) Both (a) and (b) 4. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v 1 and v 2 respectively. If A is the cross section area of the wing and p is the density of air, then the upward life is (a) 1/2 A(v ? 2 â€”v 2 ) (b) 1/2 A(v ? 1 + v 2 ) (c) 1/2 A(v ? 1 2 â€” v 2 2 ) (d) 1/2 A(v ? 1 2 + v 2 2 ) 5. A body is thrown with a velocity of 9.8 m/s making an angle of 30° with the horizontal. It will hit the ground after a time (a) 1.5s (b) 1s (c) 3s (d) 2s 6. A radioactive element 90 X 238 decays into 83 Y 222 The number of -particles emitted are ß (a) 1 (b) 2 (c) 4 (d) 6 7. Minimum excitation potential of Bohrâ€™s first orbit in hydrogen atom is (a) 3.6V (b) 10.2 V (c) 13.6 V (d) 3.4V 8. A gas expands 0.25 m 3 at constant pressure 10 3 N/m 2 , the work done is (a) 250 N (b) 250W (c) 250 J (d) 2.5 erg 9. The work done in increasing the size of a soap film for 10 cm x 6m to 10 cm x 11cm is 3 x 10 - 4 J. The surface tension of the film is (a) 1.0 x 10 -2 N/m (b) 6.0 x 10 -2 N/m (c) 3.0 x 10 -2 N/m (d) 1.5 x 10 -2 N/m 10. A parallel palte condenser is filled with two dielectrics as shown in figure. Area of each pate is A m 2 and the separation is d metre. The dielectric constants are K 1 and K 2 respectively. Its capacitance in farad will be 11. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an upright image of the object coincident with it (a) 30 cm (b) 60 cm (c) 50 cm (d) 12 cm 12. A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The maximum value of R is given by (a) 0.5O (b) 1.00O (c) 2.0O (d) 0.25O 13. For a R/C v gas = 0.67. This gas is made up of cv molecules which are (a) mono atomic (b) poly atomic (c) mixture of diatomic and poly atomic molecules (d) diatomic 14. A point source of light is placed 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc which should be placed over the source on the surface of water to cut-off all light coming out of water is (a) 6 m (b) 3 m (c) 4 m (d) 2 m 15. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 m and stick to it. Now the combined mass starts to move. What will be the combined velocity? (a) 4 km/h (b) 1 km/h (c) 2 km/h (d) 3 km/h 16. A transverse wave is represented by the equation y = y 0 sin (2 / ) â€“ 27c (vt â€“ k) p? For what value of X is the particle velocity equal to two times the wave velocity (a) = y ? p 0 (b) = ( y ? p 0 /2) (c) = ( y ? p 0 /3) (d) = 2 /y ? p 0 17. Ionisation potential of hydrogen atom is 13.6 eV. Hydrogen atom on the ground state rarely excited by monochromatic radiation of photon 12.1 eV. The special line emitted by a hydrogen atom according to Bohrâ€™s theory will be (a) one (b) two (c) three (d) four 18. The internal resistance of a primary cell is 4 . It generates a current of 0.2 A in an external O resistance of 21 The rate at which chemical energy to consumed in providing current is O (a) 1 J/s (b) 5 J/s (c) 0.42 J/s (d) 0.8 J/s 19. The binding energy per nucleon is maximum in the case 20. Two rigid bodies A and B rotate with rotational kinetic energies E A and E B respectively. The moments of inertia of A and B about the axis of rotation are I A and I B respectively. If I A = I B and E A = 100 = E B the ratio of 4 angular momentum (L A ) of A to the angular momentum (L B ) of B is (a) 25 (b) 5/4 (c) 5 (d) 1/4 Page 5 Physics 1. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is (a) 22.4 rn/s (b) 112 m/s (c) (0.64 * 40)/ (1000 * 100) m/s (d) 1000 m/s 2. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is (a) 280 km/s (b) 56.0 km/s (c) 112 km/s (d) 56 km/s 3. Light travels faster in air than that in glass. This is accordance with (a) wave theory of light (b) corpuscular theory of light (c) neither (a) nor (b) (d) Both (a) and (b) 4. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v 1 and v 2 respectively. If A is the cross section area of the wing and p is the density of air, then the upward life is (a) 1/2 A(v ? 2 â€”v 2 ) (b) 1/2 A(v ? 1 + v 2 ) (c) 1/2 A(v ? 1 2 â€” v 2 2 ) (d) 1/2 A(v ? 1 2 + v 2 2 ) 5. A body is thrown with a velocity of 9.8 m/s making an angle of 30° with the horizontal. It will hit the ground after a time (a) 1.5s (b) 1s (c) 3s (d) 2s 6. A radioactive element 90 X 238 decays into 83 Y 222 The number of -particles emitted are ß (a) 1 (b) 2 (c) 4 (d) 6 7. Minimum excitation potential of Bohrâ€™s first orbit in hydrogen atom is (a) 3.6V (b) 10.2 V (c) 13.6 V (d) 3.4V 8. A gas expands 0.25 m 3 at constant pressure 10 3 N/m 2 , the work done is (a) 250 N (b) 250W (c) 250 J (d) 2.5 erg 9. The work done in increasing the size of a soap film for 10 cm x 6m to 10 cm x 11cm is 3 x 10 - 4 J. The surface tension of the film is (a) 1.0 x 10 -2 N/m (b) 6.0 x 10 -2 N/m (c) 3.0 x 10 -2 N/m (d) 1.5 x 10 -2 N/m 10. A parallel palte condenser is filled with two dielectrics as shown in figure. Area of each pate is A m 2 and the separation is d metre. The dielectric constants are K 1 and K 2 respectively. Its capacitance in farad will be 11. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an upright image of the object coincident with it (a) 30 cm (b) 60 cm (c) 50 cm (d) 12 cm 12. A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The maximum value of R is given by (a) 0.5O (b) 1.00O (c) 2.0O (d) 0.25O 13. For a R/C v gas = 0.67. This gas is made up of cv molecules which are (a) mono atomic (b) poly atomic (c) mixture of diatomic and poly atomic molecules (d) diatomic 14. A point source of light is placed 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc which should be placed over the source on the surface of water to cut-off all light coming out of water is (a) 6 m (b) 3 m (c) 4 m (d) 2 m 15. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 m and stick to it. Now the combined mass starts to move. What will be the combined velocity? (a) 4 km/h (b) 1 km/h (c) 2 km/h (d) 3 km/h 16. A transverse wave is represented by the equation y = y 0 sin (2 / ) â€“ 27c (vt â€“ k) p? For what value of X is the particle velocity equal to two times the wave velocity (a) = y ? p 0 (b) = ( y ? p 0 /2) (c) = ( y ? p 0 /3) (d) = 2 /y ? p 0 17. Ionisation potential of hydrogen atom is 13.6 eV. Hydrogen atom on the ground state rarely excited by monochromatic radiation of photon 12.1 eV. The special line emitted by a hydrogen atom according to Bohrâ€™s theory will be (a) one (b) two (c) three (d) four 18. The internal resistance of a primary cell is 4 . It generates a current of 0.2 A in an external O resistance of 21 The rate at which chemical energy to consumed in providing current is O (a) 1 J/s (b) 5 J/s (c) 0.42 J/s (d) 0.8 J/s 19. The binding energy per nucleon is maximum in the case 20. Two rigid bodies A and B rotate with rotational kinetic energies E A and E B respectively. The moments of inertia of A and B about the axis of rotation are I A and I B respectively. If I A = I B and E A = 100 = E B the ratio of 4 angular momentum (L A ) of A to the angular momentum (L B ) of B is (a) 25 (b) 5/4 (c) 5 (d) 1/4 21. The working principle of a ball point pen is (a) Bernoulliâ€™s theorem (b) surface tension (c) gravity (d) viscosity 22. Progressive waves are represented by the equation y 1 = a sin ( t â€“ x) ? and y 2 = b cos ( t â€” x) ? The phase difference between waves is (a) 0° (b) 45° (c) 90° (d) 180° 23. Two simple pendulums of length 0.5 m and 20 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed x oscillations, where k is (a) 1 (b) 3 (c) 2 (d) 5 24. A balloon contains 500 m 3 of helium at 27°C and 1 atmosphere pressure. The volume of the helium at â€”3° C temperature and 0.5 atmosphere pressure will be (a) 1000 m 3 (b) 900 m 3 (c) 700 m 3 (d) 500 m 3 25. 220 V, 50 Hz, AC source is connected to an inductance of 0.2 H and a resistance of 20 in O series. What is the current in the circuit? (a) 3.33 A (b) 33.3 A (c) 5A (d) 10 A 26. In 0.2 s, the current in a coil increases from 2.0 A to 3.0 A. If inductance of coil is 60 mH, then induced current in external resistanceRead More

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