EASY
9th CBSE
IMPORTANT
Earn 100

What name is given to the repetition of sound caused by the reflection of sound waves?

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
What name is given to the persistence of sound in a big hall or auditorium?
EASY
9th CBSE
IMPORTANT
Name three devices which work on the reflection of sound.
EASY
9th CBSE
IMPORTANT
What is the other name of a loud hailer?
EASY
9th CBSE
IMPORTANT
Name the three characteristics of sound.
EASY
9th CBSE
IMPORTANT
Name the unit used to measure the loudness of sound. Also, write its symbol.
EASY
9th CBSE
IMPORTANT
Name the characteristic which helps us distinguish between a man's voice and a woman's voice, even without seeing them.
EASY
9th CBSE
IMPORTANT
How does the pitch of a sound depend on frequency?
MEDIUM
9th CBSE
IMPORTANT
Name the characteristic of sound which depends on amplitude, frequency and waveform.