NTSE PHYSICS SAMPLE PAPER 1. 2. 3. 1 fermi is equal to (a) 10–15 m (b) 1015 m (c) 10–12 m (d) 10–12 m Pound is the unit of ____ in the F.P.S. system. (a) Mass (b) Length (b) Time (d) Temperature Which of the following figure would probable show the velocity-time graph fro a body whose acceleration-time graph is shown in figure. a t 4. (a) (b) (c) (d) The velocity-time graph of a body falling from rest under gravity and rebounding from a solid surface is represented by which of the graphs shown in figure. v v t (a) (b) v v t t (c) 5. (d) A monkey is at rest on a weightless rope which goes over a pulley and is tied to a bunch of bananas at the other end. The weight of the bunch of bananas is exactly the same as that of the monkey. The pulley is frictionless and weightless. The monkey starts to climb up the rope to reach the bananas. As he climbs, the distance between him and the bananas will Monkey 6. 7. 8. (a) Decrease (b) Increase (c) First decrease and then increase (d) Remain unchanged The masses of 10 kg and 20 kg respectively are connected by a massless spring. A force of 200 N acts on the 20 kg mass has –2 an acceleration of 12 ms , what is the acceleration of 20 kg mass? (a) 12 ms–2 (b) 4 ms–2 (c) 10 ms–2 (d) Zero The equation, F Gm1m 2 d2 10 kg Bananas 200 N 20 kg , is applicable only to (a) Cylindrical bodies (b) Spherical bodies (c) Elliptical bodies (d) Charged bodies A bom is released from a flying aeroplane. Its path will be (a) An arc of a circle (b) Parabola (c) A zig-zag path (d) A straight vertical path in the downward direction 9. 10. Two bodies of equal weight are kept at heights of h and 1.5 h respectively. The ratio of their P.E. is (a) 3 : 2 (b) 2 : 3 (c) 1 : 1 (d) None of these In which of the following cases will the work done be maximum? The body is moved through a distance S on the ground figure. F (a) (b) F 30° 60° (c) (d) F F 40° 11. 12. A graph is plotted taking C along the Y-axis and F along the X-axis. It is a/an (a) Parabola (b) Straight line (c) Ellipse (d) Circle If 10 g of ice at 0 C mixes with 10 g of water at 10 C, then the final temperature t is given by (a) (10 80 ) 10(t (c) t 13. 0) 10(10 t) (b) 10 80 (d) t 5C (b) T2 T2 L (d) 2 T 2 T L L Which of the following correctly depicts reflections in case of plane mirror inclined at 40º? (a) (b) 90 80 50 40 (c) 40 40 (d) 70 30 85 40 16. 0) 0C L (c) 15. t ) 10(t The relation between L and T2 is (a) 14. 10(10 45 40 A ray of light is incident on a plane mirror at an angle . If the angle between the incident and reflected rays in 80º, what is the value of (a) 40º (b) 50º (c) 45º (d) 55º Which of the following correctly represents graphical relation between angle of incidence (i) and angle of reflection (r)? (a) y (b) i i O (c) r O x y (d) i x r O x r x Which of the following correctly represents graphical relation between sine of angle of incidence (i) and sine of angle of refraction (r)? (a) y O (c) sin i O sin r x y sin r x y (d) sin i O y (b) sin i 18. r y i O 17. y sin i O sin r x sin r x How will the reading in the ammeter A be affected if another identical bulb Q is connected in parallel to P? The voltage in the mains is maintained at a constant value. (a) The reading will be reduced to one-limit (b) The reading will not be affected (c) The reading will be double the previous value. (d) The reading will be increased four-fold Switch A Mains P Q 19. 20. In the circuit shown below, the ammeter A reads 5 A and the voltmeter V reads 20 V. The correct value of resistance R is (a) exactly 4 (b) slightly greater than 4 (c) slightly less than 4 (d) zero R A V A long straight wire carries a heavy current. An electron is traveling parallel to the wire in the opposite direction to the current. The electron experiences a force f when its distance from the wire is 1 m. If the electron was traveling in direction perpendicular to the wire, then the force on when it is 1 m from the wire is (a) f (c) f 2 (b) 2f (d) zero NTSE PHYSICS SAMPLE PAPER 1. (a) 2. (a) 3. (a) 4. (a) 5. (d) 6. (b) 7. (b) 8. (b) 9. (b) 10. (d) 11. (b) 12. (d) 13. (a) 14. (a) 15. (b) 16. (d) 17. (a) 18. (c) 19. (b) 20. (a)
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