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
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
Name two sound absorbing materials (or objects) which can make our big room less echoey.
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
In what respect does waveforms of noise and a musical note differ. Draw diagrams to illustrate your answer.
Waves produced on the surface of the water are formed to move with a velocity of 24 ms−1. If the wavelength of these waves equals 20 cm. find the
(i) frequency (no. of waves produced per second)
(ii) the time period (i.e. the time required to produce one wave) for these waves.
A sound wavelength of 0.332 m has a time period of 10−3 s. If the time period is decreased to 10−4 s, calculate the wavelength and frequency of the new wave.
What is meant by an echo? Explain.
