EASY
9th CBSE
IMPORTANT
Earn 100

Draw density-distance graph for a longitudinal wave.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 2>Q 8

In the curve shown in the figure half the wavelength is

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EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 2>Q 8
What kind of sound is produced by an earthquake before the main shock wave begins?
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 2>Q 10

For hearing the loudest ticking sound heard by the ear, find the angle x in the figure shown below

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MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 3>Q 1
What is the relationship between, wave velocity, frequency and wavelength for a periodic wave.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 3>Q 2
A source of wave produces 40 crests and 40 troughs in 0.4 second. Find the frequency of the wave.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 3>Q 3
A human heart on average is found to beat 75 times a minute. Calculate its frequency.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 3>Q 4
On what factors the speed of sound in a medium depends?
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 3>Q 5
In which of the following Solids, Liquids and Gases, the speed of sound is the highest and lowest?