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MCQs

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When the wind is blowing in the same direction in which the sound is travelling, the speed of sound will:
NETNUST Entry TestPhysicsWaves
Speed of sound in air at room temperature (say $20^{\circ}C$) is nearly:
NETNUST Entry TestPhysicsWaves
Sound waves are:
NETNUST Entry TestPhysicsWaves
Speed of sound in vacuum (in m/sec) is:
NETNUST Entry TestPhysicsWaves
The frequency range for human ear is:
NETNUST Entry TestPhysicsWaves
Through which medium sound waves travel faster?
NETNUST Entry TestPhysicsWaves
Laplace assumed that sound travels in gases under:
NETNUST Entry TestPhysicsWaves
The ratio of speed of sound in hydrogen to the speed of sound in oxygen is:
NETNUST Entry TestPhysicsWaves
Sound waves having frequencies between 2k Hz and 4k Hz are called:
NETNUST Entry TestPhysicsWaves
In space, sound waves cannot travel because there is:
NETNUST Entry TestPhysicsWaves
Speed of sound is _________ pressure
NETNUST Entry TestPhysicsWaves
Frequencies less than 20 hertz are called:
NETNUST Entry TestPhysicsWaves
The speed of sound is greatest in:
NETNUST Entry TestPhysicsWaves
A sound of frequency 5 Hz:
NETNUST Entry TestPhysicsWaves
The ultrasonics have the frequencies:
NETNUST Entry TestPhysicsWaves
Speed of sound in a gas is:
NETNUST Entry TestPhysicsWaves
The distance covered by sound waves in air at $0^{\circ}$C in the time of 0.1 seconds is:
NETNUST Entry TestPhysicsWaves
Experimental value of speed of sound in air at $0^{\circ}$C is:
NETNUST Entry TestPhysicsWaves
Sound waves cannot propagate through:
NETNUST Entry TestPhysicsWaves
Which one of the following wave motions is longitudinal:
NETNUST Entry TestPhysicsWaves
The distance between two consecutive rarefactions is called:
NETNUST Entry TestPhysicsWaves
For transmission of both transverse and longitudinal waves, we can use:
NETNUST Entry TestPhysicsWaves
If $\lambda=1 cm$, time period=0.02 seconds, then velocity of the wave will be:
NETNUST Entry TestPhysicsWaves
Transverse wave motion is possible in:
NETNUST Entry TestPhysicsWaves
The wave motion set up in any medium depends upon:
NETNUST Entry TestPhysicsWaves
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