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	When the bob of simple pendulum is at mean position, its K.E will be	A. maximum B. minimum C. zero D. all of them
2	The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be	A. 1 : 2 B. 4 : 1 C. 1 : 4 D. 2 : 1
3	Which type of wave can be set up in solids	A. longitudinal waves B. transverse waves C. both of them D. none of them
4	A second's pendulum is a pendulum whose time period is	A. 1 second B. 2 seconds C. 3 seconds D. 4 seconds
5	For production of beats the two sources must have	A. Different frequencies and same amplitude B. Different frequencies C. Different frequencies, same amplitude and same phase D. Different frequencies and same phase
6	If a wave can be polarized, it must be	A. An electromagnetic wave B. A longitudinal wave C. A progressive wave D. A transverse wave
7	The example of mechanical wave is	A. waves in ropes B. waves on water surface C. waves in air D. all of them
8	Smaller the damping, the resonance will be	A. more flat B. more sharp C. both of them D. none of them
9	The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:	A. Mechanical waves B. Electromagnetic waves C. Matter waves D. All of them
10	The maximum displacement of a body on either side of its equilibrium position is called	A. frequency B. amplitude C. displacement D. time period