Advertisements
Advertisements
प्रश्न
How is the frequency of a stretched string related to its length?
Advertisements
उत्तर
The frequency of a stretched string is inversely proportional to its length.
`f prop 1/l`
APPEARS IN
संबंधित प्रश्न
Define frequency term in relation to a wave.
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
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.
Mention two properties of a wave, one property which varies and the other which remains constant when the wave passes from one medium to another.
Why will an echo not be heard when the distance between the source of the sound and the reflecting surface is 10 m?
State two factors on which the natural frequency of a body depends.
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.
(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?
A sound wave whose frequency is 5000 Hz travels in air and then hits the water surface. The ratio of its wavelengths in water and air is ______.
