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Question

Mark the correct match.

A
Good reflectors of sound - Tiles, Marble slabs.
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B
Bad reflectors of sound - Thick curtains, thick carpets.
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C
Good absorbers of sound - Holed cardboard.
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D
All
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Solution

The correct option is D All
1. Hard objects are good reflection of sound because particles bounce straight off them.
For example - Tiles and Marble slabs.
2. Bad reflectors are those objects which absorb sound.
For example - Thick curtains and thick carpets.
3. Substances that absorb the sound well are called good absorbers of sound.
For example - Holed cardboard.

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