Advertisements
Advertisements
Question
Select the correct option:
A longitudinal wave consists of:
Options
crest and trough in the medium
compression and rarefaction in the medium
both crest and trough in the medium and compression and rarefaction in the medium
neither crest and trough in the medium and compression and rarefaction in the medium
Advertisements
Solution
compression and rarefaction in the medium
APPEARS IN
RELATED QUESTIONS
Select the correct alternative :
Wavelength is measured in
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?
Complete the following sentences :
Wave velocity = ________________ × wavelength.
What is sound? What causes it to produce?
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.
Explain how the principle of echo is used by
The bat during its flight at night
The sound waves travel faster ______.
Name three animals which can hear ultrasonic vibrations.
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
How do we hear the sound?
