MDCAT Physics MCQ's Test With Answers

MDCAT Physics MCQ's Test

Sr. # Questions Answers Choice
1 At what place , motion of a simple pendulum will be the slowest: On the surface of the earth All of the centre of earth At the quarter Both B and C
2 Time period of a simple pendulum at certain placed depends upon: Mass of the bob Amplitude Material of the bob None of these
3 At which place simple pendulum will vibrate the slowest? Muree Karachi Mount Everest None of these
4 If length of the second's pendulum is denoted by L1then the length of a pendulum having a period of 1 second is: L/2 2 L L / 4 4 L
5 The time period of a simple pendulum does not depend upon. Amplitude Mass Length Both A and B
6 If time period of a pendulum is doubled by increasing its length, then its frequency will: Also be doubled Become half Become one fourth Becomes four times
7 Pendulums having same lengths will vibrate with: Same frequency Different periods Differnet freqeuncies None of these
8 If L is length of a simple pendulum and T is its time period, then graph between different values of L and T2 will be A curve A straight line A sine curve None of these
9 if ratio of time periods of two pendulum is 1:2 then the ratio of their length will be: 4 : 1 1 : 2 1 : 4 None of these
10 When the bob of a simple pendulum is at extreme position, K.E.is _____ and P.E. is ________________. Maximum, zero Minimum, zero zero , maximum None of these
11 While determining the time period of simple pendulum, we keep the amplitude: Large Small Zero None of these
12 A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be: 1.5 sec 2.0 sec 2.3 sec 2.5 sec
13 A mass attached to a spring vibrates with a frequency of 0.6 cycles/sec. Its angular velocity W comes out to be : 3.77 red/sec 10.4 red/sec 1.67 red/sec None of these
14 A mass attached to a spring completes 60 vibrations in half minute. Its frequency is: 120 Hertz 60 Hertz 30 Hertz 2 Hertz
15 Half wavelength corresponds to: 0<sup>o</sup> 90<sup>o</sup> 180<sup>o</sup> 360<sup>o</sup>
16 A body complete 20 vibrations in one minute, tis time period wil be: 0.05 sec 1.5 sec 3.0 sec 20 seconds
17 A Complete circle is equivalent to: Full wavelength Half wavelength Quarter wavelength None of these
18 In case of spring-mass system, the ratio of the applied force to the displacement is called: Planck's constant Decay constant Spring constant 4 Acceleration
19 The change in length of the spring in a spring -mass system is directly proportional to: Frequency Applied force Velocity None of these
20 An oscillating body oscillates due to: Applied force Restoring force Fricntional force None of these
21 An angle of 180oin circular motion is equivalent to _______ in SHM. Half the vibration One vibration 3/4th of a vibration None of these
22 In SHM, the acceleration is _________ when velocity is____. Zero, smallest Smallest, zero Zero, Zero Zero, greatest
23 An object in SHM will have maximum speed when its displacement from equilibrium position is : Infinity Maximum Zero Minimum
24 Hertz is unit of : Time period Displacement amplitude Frequency
25 In SHM there is always a constant ratio between displacement of a body and its: Velocity Period Mass Acceleration
26 If a mass of 10 gm is suspended from a spring of k= 9.8 Nm-1, then the extension will be 1 cm 1 m 10 mm None of these
27 The time taken to complete one vibration is called: Frequency Amplitude Time Time period
28 Amplitude in SHM is equivalent to___________ in circular motion. Diameter Radius Circumference None of these
29 The graph showing the variation of displacement with time is a: Sine curve Straight line Parabola None of these
30 The SI unit of spring constant is identical with that of: Force Surface tension Pressure Loudness
31 When the mass attached to a spring begins to move left or right from the equilibrium position, its P.E. Increases Decreases Remain constant None of these
32 Which one of the following is an example of SHM. Motion in a plane Motion in swing Motion in a car None of these
33 The unit of spring constant is: J-Sec Metre Nm<sup>-1</sup> None of these
34 To and fro motion of a body about its mean position is known as: Translatory motion Vibratory motion Rotatry motion None of these
35 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be: 2500 MHz 0.25 MHz 2500 KHz None of these
36 Free oscillations are always produced by: An applied force Gravitational force Restoring force and inertia Inertia only
37 Second pendulum is the pendulum whose time period is: 1 second 2 seconds 3 seconds None of these
38 The stirng of a simple pendulum should be Heavy Extensible Inextensible None of these
39 The time period of a simple pendulum is independent of its: Length Mass Value of g Both A and B
40 A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m , then time period of spring mass system will be: 1.5 sec 2.0 sec 2.3 sec 2.5 sec
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