Sound Test - 1...

Which of the following will remain unchanged when a sound wave travels in air or in water?

The sound intensity level of an ordinary conversation at 50 cm is nearly:

The sound carried by air from a sitar to a listener is a wave of following type

If the intensity of sound is doubled, the sound level will increase nearly by

Intensity or loudness depends upon which of the following factors?

The S.I unit of intensity of sound wave is

When a wave is refracted,

Two sound waves having two sinusoidal waveforms, but different wavelength and amplitude, are said to have

At STP the velocity of sound is minimum in

For 1⁰ F rise in temp, the velocity of sound in air increases nearly by