ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 8 Waves MCQ`s Test

Sr.#	Question	Answer
1	Waves transport energy	A. without transport energy B. with matter C. both of them D. none of them
2	Which waves are used in sonography?	A. Microwaves B. Infra red waved C. Sound waves D. Ultrasonic waves
3	SI unit of frequency is	A. second B. hertz C. revolution D. vibrations/sec
4	Time period of simple pendulum is independent of	A. length B. mass C. acceleration due to gravity D. none of them
5	The force which opposes the applied force producing the displacement in the spring is called	A. restoring force B. periodic force C. centripetal force D. resistive force
6	Acceleration of the mass at any instant is given by	A. a=k/m x B. a= - m/k x C. a = - k/m x D. a=m/k x
7	The frequency of free vibrations is known as	A. free frequency B. forced frequency C. natural frequency D. un-natural frequency
8	The example of mechanical wave is	A. waves in ropes B. waves on water surface C. waves in air D. all of them
9	Of the following, the option ______ reminds of longitudinal waves.	A. Sound waves B. Heat waves C. Electromagnetic waves D. Light waves
10	When a body moves to and fro motion, this type of motion is called	A. translatory motion B. circular motion C. oscillatory motion D. all of them