2. SECTION – A Single Correct Answer Type There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate
3. Problem 01 To convert a galvanometer in a voltmeter, we must connect a Low resistance in series High resistance in parallel Low resistance in parallel High resistance in series
4. Problem 02 A galvanometer of 100 Ω resistance gives full scale deflection with 0.01 A current. How much resistance should be connected to convert it into an ammeter of range 10 A? 0.2 Ω in series 0.1 Ω in parallel 0.1 Ω in series 0.2 Ω in parallel
5. Problem 03 The potential difference between two electrodes of a galvanic cell, in an open circuit, is known as Current Electromotive force Potential difference Impedance
6. Problem 04 The magnetic field B0 due to a current carrying circular loop of radius 12 cm at its centre is 0.50 x 10-4 T. The magnetic field due to this loop at a point on the axis at a distance of 5 cm from the centre is 3.5 * 10-9 T 3.9 * 10-5 T 9.3 * 10-5 T 5.3 * 10-9 T
7. Problem 05 An e.m.f. of 15 volt is applied in a circuit containing 5 H inductance and 10 Q resistance. The ratio of currents at t = °o and at t = 1 sec is a. e-1 b. c. d. 1-e
8. Problem 06 Aledo is Reflecting power of a heavenly body Transitive power of a heavenly body Absorptive power of a heavenly body Refracting power of a heavenly body
9. Problem 07 Who disproved the geocentric theory of universe? Aristotle Charles Darwin Issac Newton Copernicus
10. Problem 08 In a p-n-p transistor working as a common-base amplifier, current gain is 0.96 and emitter current is 7.2 mA. The base current is 0.4 mA 0.2 mA 0.29 mA 0.35 mA
11. Problem 09 In a nuclear reactor, the fast moving neutrons are slowered down by passing them through Oil Kerosene Heavy water Vacuum
12. Problem 10 A sample of a radioactive substance contains 2828 atoms. If its half-life is 2 days, how many atoms will be left intact in the sample after one day? 1414 1000 2000 707
13. Problem 11 Magnetic field is measured in Weber Weber/(metre)2 Weber-(meter)2 Henry
14. Problem 12 The dimensions of Planck's constant are [ML2T-1] [M0L-1T-3] [ML-2T-1] [ML3T-1]
15. Problem 13 The speed of boat is 5 km/hr in still water. It crosses a river of width 1 km along the shortest possible path in 15 minutes. Then velocity of river is 4 km/hr 1 km/hr 2 km/hr 3 km/hr.
16. Problem 14 A bullet is dropped from the same height when another bullet is fired horizontally. They will hit the ground Simultaneously Depends upon mass of bullet Depends on the observer One after the other
17. Problem 15 The displacement of a particle moving in a straight line depends on time (/) as : x = αt3 + βt2 + γt + δ The ratio of its initial acceleration to its initial velocity depends Only on α Only on α and y Only on β and y Only on α and β
18. Problem 16 A paper, with two marks having separation d, is held normal the line of right of an observer at distance of 50 cm. The diameter of the eyeslens of the observer is 2mm. Which of the following is the least value of of so that the marks can be seen as separate? (mean wavelength of visible light may be taken 5000A) 0.125 cm 2.125 cm 1.525 cm 1.225 cm
19. Problem 17 At what angle, a ray of light will be incident on one face of an equilateral prism, so that the emergent ray may graze the second surface of the prism (µ = 1.5) 18° 38° 32° 28°
20. Problem 18 Which of the following waves have the maximum wavelength? X-rays IR rays UV rays Radio waves
21. Problem 19 Two magnets of magentic moments M and 2M are placed in a vibration magnetometer, with identical poles in the same direction. The time period of vibration of the combination is T1. If the same magnets are placed with opposite poles together and vibrate with time period T2 then T2 = Tl T2 is infinite T2 < T1 T2 > T1
22. Problem 20 Curie temperature of iron is the temperature below which it is Radioactive Superconducting Ferromagnetic Diamagnetic
23. Problem 21 If a cyclist moving with a speed of 4.9 m/s on a level road can take a sharp circular turn of radius 4 m, then coefficient of friction between the cycle tires and road is 0.41 0.51 0.61 0.71
24. Problem 22 A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2 rad/sec. The centripetal force acting on the body is 10N 40 N 30 N 20 N
25. Problem 23 A bullet of mass 25 g moving with a velocity of 200 m/s is stopped within 5 cm of the target. The average resistance offered by the target is 10 Kn 40 kN 30 kN 20 kN
26. Problem 24 Two masses mA and mB moving with velocities vA and vB in opposite directions collide elastically. After that the masses mA and mB move with velocity vB and vA respectively. The ratio is a.1 b. c. d.
27. Problem 25 A machine delivering constant power moves a body along a straight line. The distance moved by the body in time t is proportional to t t3/4 t3/2 √t
28. Problem 26 A 100 W, 200 V bulb is connected to a 160 volts supply. The actual power consumption would be 64 W 125 W 100 W 80 W
29. Problem 27 In the given figure, the capacitors C,, C3, C4, C, have a capacitance of 4 each. If the capacitor C2 has a capacitance of 10 |.iF, then effective capacitance between A and B is 2 µF 4 µF 6 µF 8 µF
30. Problem 28 The energy stored in a capacitor is actually stored Between the plates On the outer surface of the plates On the negative plate On the positive plate
31. Problem 29 Two identical mercury drops, each of radius r are charged to the same potential V. If the mercury drops coalesce to form a big drop of radius R, then potential of the combined drop will be (2)3/2 V (3)1/2 V (3)2/3 V (2)2/3 V
32. Problem 30 When a current flows in a wire, there exists an electric field in the direction of Flow of current At an angle of 45° to the flow of current Perpendicular to the flow of current Opposite to the flow of current
33. Problem 31 f the radius of earth is reduced by 1% without changing the mass, then change in the acceleration due to gravity will be 1% decrease 2% decrease 2% increase 1% increase
34. Problem 32 If the spinning speed of earth is increased, then weight of the body at the equator Increase Does not change Doubles Decreases
35. Problem 33 The ratio of energy required to raise a satellite to a height h above the earth's surface to heat required to put it into the orbit is h : R h : 2R 2h : R R : h
36. Problem 34 The moment of inertia, of a rigid body, depends upon Mass of the body Distribution of mass from axis of rotation Angular velocity of the body Angular acceleration of the body
37. Problem 35 A circular disc is rotating with angular velocity co. If a man standing at the edge of the disc walks towards its centre, then the angular velocity of the disc will Decrease Not change Be halved Increase
38. Problem 36 First law of thermodynamics deals with the conservation of Energy Momentum Charge Mass
39. Problem 37 For a gas, if the ratio of specific heats at constant pressure and volume is y, then the value of degree of freedom is a. b. c. d.
40. Problem 38 Work done by a simple pendulum in one complete oscillations is a. Zero b. c. d.
41. Problem 39 A lift is ascending with an acceleration equal to g/3. What will be the time-period of a simple pendulum suspended from its ceiling if its time-period in stationary lift is T. a. b. c. d.
42. Problem 40 If the equation of a sound wave is given as : Y = 0.0015 sin(62.4 a- + 316 t), then wavelength of this wave is 0.4 unit 0.1 unit 0.2 unit 0.3 unit
43. Problem 41 Which of the following property of light waves is not observed in sound waves? Reflection Doppler effect Polarization Refraction
44. Problem 42 In a sinusoidal wave, the time required for a particular point to move from maximum displacement is 0.17 sec. The frequency of the wave is 0.36 Hz 2.94 Hz 1.47 Hz 0.73 Hz
45. Problem 43 The amplitude of the vibrating particle due to superposition of two simple harmonic motions of is and Y2=sin( t) is 1 2 S 42
46. Problem 44 A standing wave is r e p r e s e n t e d by : y = asin(100 t).cos(0.01x); where t in seconds and x in metres. The velocity of wave is 104 m/s 10-2 m/s 10-4 m/s 1 m/s
47. Problem 45 A simple pendulum of length I has a maximum angular displacement 9. The maximum kinetic energy of the bob of mass m is Mgl mgl (I - cosθ) mglsinθ 0.5 mgl
48. Problem 46 How many images will be formed if two mirrors are fitted on adjacent wall and one mirror on r o o f ? 2 5 7 10
49. Problem 47 An optician prescribes spectacles to a patient with a combination of a convex lens of focal length 40 cm and concave lens 25 cm. The power of spectacles is -1.5 D 6.5 D 1.5 D -6.5 D
50. Problem 48 The velocity of an electron in the inner-most orbit of an atom is Zero Highest Lowest Mean
51. Problem 49 The hydrogen atom can give spectral lines in the Lyman, Balmer and Paschen series. Which of the following statement is correct? Paschen series is in visible region Balmer series is in ultra violet-region Lyman series is in infra-red region Balmer series is in visible region
52. Problem 50 Which of the following pairs has same dimensions? Stress and strain Pressure and density Momentum and inertia Impulse and momentum
