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Select the Correct Alternative: the Minimum Distance Required Between the Source and the Reflector So as to Hear the Echo in Air is - Physics

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MCQ

Select the correct alternative: 

The minimum distance required between the source and the reflector so as to hear the echo in air is

Options

  • 10 m

  • 17 m

  • 34 m

  • 50 m

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Solution

17m

Concept: Absorption of Sound
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APPEARS IN

Selina Concise Physics Class 7 ICSE
Chapter 6 Sound
Objective Questions | Q 4.4
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