ECAT Pre Computer Science Chapter 8 online mcq test with answers for Physics chapter 8 (Waves)

ECAT Physics Chapter 8 Waves Online Test

Sr. #	Questions	Answers Choice
1	Two sources of sound are said to be coherent if	The produce sounds of equal intensity They produce sounds of equal frequency They produce sound waves vibrating with the same phase They produce sound waves with zero or constant phase difference all instant of time
2	When sound waves travel from air to water which of these remains constant?	Velocity Frequency Wavelength All the above
3	Which type of wave can be set up in solids	longitudinal waves transverse waves both of them none of them
4	The waves in which the particles of the medium have displacement along the direction of propagation of waves are called	longitudinal waves transverse waves non-mechanical waves none of them
5	The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as	longitudinal waves transverse waves non-mechanical waves none of them
6	Example of progressive wave is	transverse waves longitudinal waves both of them none of them
7	A wave, which transfer energy by moving away from the source of disturbance is called a	progressive wave travelling wave both of them none of them
8	In case of mechanical waves, we study the motion of	a single particle collection of particle any one of them none of them
9	The example of mechanical wave is	waves in ropes waves on water surface waves in air all of them
10	The waves which propagate out in space due to oscillation of electric and magnetic fields are known as	e.m. waves mechanical waves sound waves water waves
11	The waves which propagate by the collision of material particles are known as	e.m. waves mechanical waves light waves microwaves
12	Wave disturbances may also come in a concentrated bundle, like shock wave from an aeroplane flying at	subsonic speed sonic speed super sonic speed any one of them
13	Waves transport energy	without transport energy with matter both of them none of them
14	A weakly damped system has fairly	sharp resonance curve flat resonance curve both of them none of them
15	A heavily damped system has a fairly	sharp resonance curve flat resonance curve both of them none of them

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