Advertisements
Advertisements
प्रश्न
Which wave property determines loudness?
Advertisements
उत्तर
The loudness of a sound is determined basically by its amplitude. The amplitude of the sound wave depends upon the force with which an object is made to vibrate.
APPEARS IN
संबंधित प्रश्न
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
To detect the obstacles in their path, bats produce ______.
Give two examples each of longitudinal waves and transverse waves.
How does the frequency of sound given by a stretched string depend on its
- length,
- tension?
A cannon is fired at A (see diagram). An observer at B hears two sounds. The first sound is heard after 1 second and the second 3s after the observer sees the flash. (Velocity of sound = 340 ms−1)
(i) Why does the observer see the flash before he hears the sound?
(ii) Calculate the distance x between the observer and the wall.
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
Why is a sound wave called a longitudinal wave?
In longitudinal waves, the particle vibrates in a ______ direction of propagation.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
