Q12 of 54 Page 389

Crest and trough.

Crest: It is the highest point the medium rises to while propagation of wave.


Trough: It is the lowest point a medium falls to while propagation of wave.


More from this chapter

All 54 →
10

Give Reasons for the Following:

Why echoes in the long gallery and big halls can be heard?

 11

Transverse waves and longitudinal waves.

 13

Infrasonic vibrations and ultrasonic vibrations.

 14

Compression and rarefaction.