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	Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of	A. very small energy B. very large energy C. frictional forces D. acceleration due to gravity
2	Crests and troughs are formed in:	A. Longitudinal waves B. Transverse waves C. Both of these D. None of these
3	Angular frequency 'w' is basically a characteristics of	A. linear motion B. circular motion C. both of them D. none of them
4	The waves produced in a microwave oven have wavelength.	A. 12 mm B. 12 cm C. 12 m D. 12 mm
5	The waves which propagate by the collision of material particles are known as	A. e.m. waves B. mechanical waves C. light waves D. microwaves
6	Ultra-violet rays differ from X-rays in that they	A. Cannot be diffracted B. Cannot be polarized C. Have a lower frequency D. Are deviated when they pass through a magnetic field
7	Such oscillations in which the amplitude decreases steadily with time, are called	A. resonance B. force oscillations C. large oscillations D. damped oscillations
8	Which type of wave can be set up in solids	A. longitudinal waves B. transverse waves C. both of them D. none of them
9	The expression for restoring force is	A. F=ma B. F=kx C. F= -kx D. Kx=ma
10	One complete round trip of the body about its mean position is called	A. displacement B. vibration C. a complete motion D. an acceleration