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Select 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. Compressions are the regions where particles are .
2. is the number of vibrations made by a vibrating body in one second.
3. Sound is a wave and needs a material medium to travel.