Physics ECAT Pre Engineering MCQ's Test For Full Book With Answers

Physics ECAT Pre Engineering MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Light appears to travel in straight line because It is not absorbed by the atmosphere It is refracted by the atmosphere Its wavelength is very small Its velocity is very large
2 Selenium is: An insulator A conductor Both A and B Excellent conductor None of these
3 Stars twinkle due to The fact that they do not emit light continuously The refractive index of earth's atmosphere fluctuates The Star's atmosphere absorbs its light intermittently None of these
4 The inkjet printer eject a thin stream of: Water Oil Ink Any above None of these
5 A prism splits a beam of white light into seven component colors. This is so because Phase of different colors is different Amplitude of different colors is different Wavelength of different colors is different Velocity of different colors is different
6 If the distance between two charges is doubled,the force between them will become: Double Half One third One fourth
7 The number of countries who manage the largest satellite system is: 3 24 126 200
8 Velocity of particle executing SHM will be maximum at Extreme position Mean position b/w mean and extreme None
9 Satellites are held in orbits around Earth by its: Gravitational field Magnetic field Own orbital motion Own spin motion
10 Which one is related to angular motion: Moment of a force Moment of inertia Moment of momentum None of these
11 Angular momentum is a: vector quantity Imaginary quantity Complex Quantity Scalar Quantity
12 Direction of angular momentum is determined by: Right hand rule Head to tail rule Left hand rule None of them
13 A particle executes SHM with frequency. The frequency with which its K.E oscillates is f/2 2f f 4f
14 A disc rolls down a hill and its speed at bottom is found to be 11.4 m/sec. Height of the hill is then nearly: 10 m 12 m 13 m 15 m
15 Which of the following quantity for particle executing SHM is non-zero at mean position Force Acceleration Velocity Displacement
16 A particle moving uniformly along circle its projection along diameter performs Linear motion Projectile motion SHM Rotatory motion
17 Which of the following pairs does not have identical dimensions? Torque and energy Energy and work Momentum and impulse Mass and moment of inertia
18 Moment of inertia depends upon: Mass Selection of axis of rotation Both of them None of these
19 The displacement of body executing SHM is x<sub>o</sub>coswt x<sub>o</sub>sinwt x<sub>o</sub>sin<sup>2</sup>wt Both A, B
20 The center of mass of a sphere lies at: The axis of the sphere Circumference of sphere Center of the sphere None of them
21 The S.I unit of frequency is Vibrations s<sup>-2</sup> Ms<sup>-1</sup> Hertz s<sup>-1</sup>
22 When a body moves with a constant speed in a circle: No work is done on it No acceleration is produced in the body Velocity remains constant None of these
23 ______ plays the same role during angular motion as played by the mass in linear motion Torque Angular Momentum Moment of a force Moment of inertia
24 The maximum distance of body from mean position when body is executing SHM is called Time period Displacement Amplitude Frequency
25 The wave form of SHM is Pulsed wave Square wave Triangular waved Sine wave
26 The acceleration of body executing SHM is directly proportional to Applied force Amplitude Displacement Frictional force
27 Centripetal acceleration is also called ______ acceleration Tangential Radial Angular None of them
28 In vibrational motion(SHM) P.E remains conserved Average K.E remain constant Neither P.E nor K.E remains constant Total energy remains constant
29 Vibratory motion is always under Applied force Restoring force Periodic force Gravitational force
30 Acceleration of body executing SHM is always directed towards Extreme position Mean position Along the direction of motion None
Download This Set

Is this page helpful?