Advertisements
Advertisements
प्रश्न
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
विकल्प
X will be shriller and Y will be grave
X will be grave and Y will be shriller
X will differ in quality than Y
X is louder than Y
Advertisements
उत्तर
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then X will be grave and Y will be shriller.
Explanation:
Pitch is determined by the frequency of a sound wave. A higher frequency corresponds to a higher, or shriller, pitch, while a lower frequency results in a lower, or graver, pitch. Since wave Y has a higher frequency (120 Hz) than wave X (60 Hz), Y will be perceived as shriller and X as graver.
APPEARS IN
संबंधित प्रश्न
What is a longitudinal wave ?
How does the loudness of sound produced depend on the vibrating area of the body ?
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
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.
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
Two tuning forks A and B of frequencies 256 Hz and 192 Hz respectively are vibrated in air. If the wavelength of A is 1.25 m, calculate the wavelength produced by B.
What is the ratio of speed of light to speed of sound?
he sound of an explosion on the surface of a lake is heard by a boatman 120 m away and by a diver 120 m below the point of explosion. Out of the two persons, who would hear the sound first? Why?
What is a longitudinal wave?
