Choose the right word given in the table:
|
depth of the sea
|
ultrasonic sound
|
cochlea
|
|
amplitude
|
auditory
|
crowded together
|
|
Frequency
|
infrasonic
|
energy
|
|
Shriller
|
longitudinal | Bell-jar experiment |
1. SONAR is used to find the .
2. is the number of vibrations made by a vibrating body in one second.
3. The sound is produced before the main shock wave of earth quake.