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
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2 |
When sound waves travel from air to water which of these remains constant? |
Velocity
Frequency
Wavelength
All the above
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3 |
Which type of wave can be set up in solids |
longitudinal waves
transverse waves
both of them
none of them
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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
|