Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
Define frequency term in relation to a wave.
Name the waves which are used in sonar to find the depth of a sea. Give one reason for their use.
What is a bulb horn ? Name the principle on which a bulb horn works.
What is a soundboard ? Explain the working of a soundboard with the help of a labelled diagram.
Explain how is the principle of echo used by
(a) The bat during its flight at night,
(b) The dolphin to locate small fish as its prey.
Write the approximate value of the speed of sound in iron.
What are fishing boats?
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 ______.
