The velocity of sound in air would become double than its velocity at 0°C at temperature
A. 313°C
B. 586°C
C. 819°C
D. 1172°C
Physics
The normal ear is the most sensitive in the frequency range
A. 20000 to 30000 hertz
B. 10 to 20 hertz
C. 2000 to 4000 hertz
D. 6000 to 8000 hertz
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On loading the prong of a tuning form with wax its frequency
A. increases
B. decreases
C. remains unchanged
D. may increase or decrease
On loading the prong of a tuning form with wax its frequency Read More »
Increase in velocity of sound in the air for 1°C rise in temperature is_
A. 1.61 ms-1
B. 61.0 ms-1
C. 0.61 ms-1
D. 2.00 ms-1
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Sound waves do not travel in vacuum because
A. they are transverse waves
B. they are stationary waves
C. they require material medium for propagation
D. they do not have enough energy
Sound waves do not travel in vacuum because Read More »
It is possible to distinguish between transverse and longitudinal waves form the property of
A. refraction
B. polarization
C. interference
D. diffraction
If stretching force T of wire increases, then its frequency
A. decreases
B. increases
C. remains the same
D. any of above
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When two identical traveling waves are superimposed, the velocity of the resultant wave
A. decreases
B. increases
C. remains unchanged
D. becomes zero
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The waves that require a material medium for their propagation are called
A. matter waves
B. electromagnetic waves
C. carrier waves
D. mechanical waves
The waves that require a material medium for their propagation are called Read More »
Which phenomena can be applied to estimate the velocity of star with respect to earth
A. Dopplers effect
B. Interference of waves
C. Beats phenomena
D. All of these
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