EASY
9th CBSE
IMPORTANT
Earn 100

The frequency ranges for hearing speaking of dog is _____.

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Important Questions on Sound

EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
The frequency of sound above 20 kHz is called _____.
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
The minimum distance between the source and the reflector so that the echo is heard is approximately equal to _____m.
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
Choose the correct relationship between wave velocity (v), frequency (f)and wavelength (λ).
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
Which of the following is not the characteristic of a musical sound? 
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
We cannot hear sound on the moon because sound does not travel in _____.
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
The physical quantity that oscillates in most waves is _____.
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
_____ remains unchanged when a sound wave travels in air or in water.
EASY
9th CBSE
IMPORTANT
The Science Springboard: A Foundation Course Based on NCERT Curriculum>Chapter 5 - Sound>Practice Questions
The frequency which is not audible to the human ear is _____.