Advertisements
Advertisements
प्रश्न
State two factors on which the natural frequency of a body depends.
उत्तर
(i) The shape of the body, and
(ii) The size of the body.
APPEARS IN
संबंधित प्रश्न
How is the frequency of a stretched string related to its length?
The following diagram shows three ways in which the string of an instrument can vibrate.
(a) which of the diagram shows the principal note?
(b) which has the frequency four times that of the first?
(c) what is the ratio of the frequency of the vibration in (i) and (ii)?
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.
How are bats able to fly in the dark?
A cork piece is floating on the surface of the water in a pond. A piece of pebble is dropped into the water. What will be your observation?
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
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.
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.
Explain why, the ceilings of concert halls are curved.
