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Read the following statement and give the correct answer
When air is removed from the bell jar experiment:

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Intensity of sound falls

Intensity of sound increase

Speed of sound increases.

Speed of sound falls

answer is A.

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Detailed Solution

When air is removed from the bell jar experiment intensity of sound falls

Since sound is a mechanical wave, it must travel through a material medium like air, water, steel, etc. The sound from the bell jar fades as the air is blown out

Hence the air medium is removed, resulting in reducing the intensity of the sound.

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