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8th CBSE
IMPORTANT
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Supersonic jets fly faster than the speed of sound.

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Important Questions on Sound

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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q II
Ultrasound can be used to measure the depth of sea.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q III
An object oscillates 30 times in 3 s. Therefore, its frequency is:
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q III
The time period of an object is 0.2 s. Therefore, its frequency is:
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q III
Which of the following has the highest pitch?
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q III
A vibrating object with a time period ______ will produce an audible sound.
 
HARD
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q III
What will be the time taken by a vibrating body to complete one oscillation if it produces 300 sound waves per minute?
HARD
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q 1
What do you mean by inner ear?
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NaTTY NUT>Q 2
What are ultrasonic waves?