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	The process in which energy is dissipated from the oscillating system is known as	A. resonance B. interference C. diffraction D. damping
2	If the time period a simple pendulum is 2 s, its frequency would be	A. 2 Hz B. 1.5 Hz C. 1.0 Hz D. 0.5 Hz
3	Decibel is unit of	A. Intensity of light B. x-ray radiation capacity C. sound loudness D. Energy of radiation
4	Crests and troughs are formed in:	A. Longitudinal waves B. Transverse waves C. Both of these D. None of these
5	The portion of the water above its mean level forms a:	A. Crest B. Trough C. Both A and B D. None of these
6	When an oscillatory motion repeats itself, then this type of motion is called	A. vibratory motion B. constant motion C. fixed motion D. periodic motion
7	Smaller the damping, the resonance will be	A. more flat B. more sharp C. both of them D. none of them
8	The principle of superposition states that	A. The total displacement due to several waves is the sum of the displacement due to those waves acting individually B. Two stationary waves superimpose to give two progressive waves C. A diffraction pattern consists of many interference patterns superimposed on one another D. Two progressive waves superimpose to give a stationary wave
9	A heavily damped system has a fairly	A. sharp resonance curve B. flat resonance curve C. both of them D. none of them
10	The waves produced in a microwave oven have wavelength.	A. 12 mm B. 12 cm C. 12 m D. 12 mm