EASY
8th CBSE
IMPORTANT
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What is the upper limit of frequency of human hearing?

Important Questions on Sound

EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 62
What is the lower limit of frequency of human hearing?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 62
Name one animal which can produce ultrasonic sounds.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 62
Name two animals which can hear ultrasonic sounds.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 63
What is a vibration (or an oscillation)? Define 'amplitude' of vibration of an object.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 63
What is the frequency of a vibrating body whose time-period is 0.05 second?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 64
State two methods of producing sound.
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 64
How does sound from a sound producing body travel through air to reach our ears? 
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 13 - Sound>Short Answer Type Questions>Q 65
Why a sound cannot be heard on the moon?