Advertisements
Advertisements
Question
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
Advertisements
Solution
Soundboard is a concave board that is kept behind the speaker on the stage of a big hall.
APPEARS IN
RELATED QUESTIONS
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 ms1 for all frequencies; calculate the wavelengths corresponding to the given extreme frequencies of the audible range
Define wavelength term in relation to a wave.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
What is a megaphone ? Name the principle on which a megaphone works.
Explain how the principle of echo is used by
The bat during its flight at
Write the approximate value of the speed of sound in air.
How are bats able to fly in the dark?
A radio signal, sent towards the surface of the moon, is received in 2.5 seconds. If the speed of the radio waves is 3 × 108 ms−1, find the distance of the moon from the earth.
Explain Reflection at curved surfaces.
