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	transverse wave motion is possible in:	A. Air B. A mixture of NH₃and O₂ C. Strings D. All of these
2	Such oscillations in which the amplitude decreases steadily with time, are called	A. resonance B. force oscillations C. large oscillations D. damped oscillations
3	The velocity of sound in air depends upon	A. Density and elasticity of gas B. Pressure C. Wavelength D. Amplitude and frequency of sound
4	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
5	The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called	A. rotatory motion B. motion under gravity C. angular motion D. simple harmonic motion
6	In solids, only following type/s of wave can travel:	A. Transverse B. Longitudinal C. Both A and B D. None of them
7	The time period of pendulums of different lengths would be	A. same B. different C. both of them D. none of them
8	A weakly damped system has fairly	A. sharp resonance curve B. flat resonance curve C. both of them D. none of them
9	The waves produced in a microwave oven have wavelength.	A. 12 mm B. 12 cm C. 12 m D. 12 mm
10	A swing has	A. one natural frequency B. two natural frequencies C. three natural frequencies D. four natural frequencies