MEDIUM
9th CBSE
IMPORTANT
Earn 100

How can reverberations in a big hall or auditorium be reduced?

Important Questions on Sound

MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 42
Why do we hear more clearly in a room with curtains than in a room without curtains?
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 43
What is a megaphone? Name the principle on which a megaphone works.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 44
What is a bulb horn? Name the principle on which a bulb horn works.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 45
What is a stethoscope? Name the principle on which a stethoscope works.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 46
What is a soundboard? Explain the working of a soundboard with the help of a labelled diagram.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 47
What is meant by the 'loudness' of sound? On what factor does the loudness of a sound depend?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 47
Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Short Answer Type Questions>Q 48
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend?