Advertisements
Advertisements
प्रश्न
State two factors on which the speed of a wave travelling in a medium depends.
Advertisements
उत्तर
The density and elasticity of a medium determine a longitudinal wave's speed in that medium. `(i.e. V = sqrt(E//d))`
APPEARS IN
संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform
Name the principle on which a soundboard works.
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
Point out the waves from the given list, i.e., light, sound, radio waves, ultrasonic waves, and thermal radiation, the energy is propagated by mechanical waves.
How are bats able to fly in the dark?
What do you understand by the ‘Echolocation system of Dolphins’?
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
(i) A man stands at a distance of 68 m from a cliff and fires a gun. After what time interval will he hear the echo, if the speed of sound in air is 340 ms−1?
(ii) If the man had been standing at a distance of 12 m from the cliff would he have heard a clear echo?
Explain reflection at the boundary of a rarer medium.
