Advertisements
Advertisements
Question
Select the correct option:
A part of longitudinal wave in which particles of the medium are farther away than the normal particles is called :
Options
rarefaction
trough
compression
crest
Advertisements
Solution
rarefaction
APPEARS IN
RELATED QUESTIONS
Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.
How is it possible to recognize a person by his voice without seeing him?
How does the velocity of a wave vary with temperature?
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
Select the correct option:
In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
The time interval between a lighting flash and the first sound of thunder was found to be 6 s. If the speed of sound in air is 330 ms-1, find the distance of the flash from the observer.
What do you mean by an echo?
Number of vibrations produced in one second is ______.
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
What do you understand by the term echo?
