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Subjects
Science State Board
Class 9
Sound
Textbook questions
11.
Match the following
Exercise condition:
5
m.
Column - I
Column - II
1
. Tuning fork
Longitudinal wave.
The sound whose frequency is greater than 20,000 Hz.
Maximum displacement from the equilibrium position.
Production of sound.
The point where density of air is maximum.
2
. Sound
Longitudinal wave.
Production of sound.
The point where density of air is maximum.
The sound whose frequency is greater than 20,000 Hz.
Maximum displacement from the equilibrium position.
3
. Compressions
The point where density of air is maximum.
Production of sound.
The sound whose frequency is greater than 20,000 Hz.
Maximum displacement from the equilibrium position.
Longitudinal wave.
4
. Amplitude
Longitudinal wave.
Maximum displacement from the equilibrium position.
The point where density of air is maximum.
The sound whose frequency is greater than 20,000 Hz.
Production of sound.
5
. Ultasonics
Production of sound.
Longitudinal wave.
Maximum displacement from the equilibrium position.
The point where density of air is maximum.
The sound whose frequency is greater than 20,000 Hz.
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