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Grade: 12
        The minimum distance of a reflector to hear the echo of a sharp sound in terms of sound v is Options: v/20                v/10                 v/5                 10v
7 months ago

Answers : (1)

Arun
12364 Points
							The minimum distance required for an echo to be produced is 16.6 m. Which is equal to v/20. As v = 332  m/ sec
						
7 months ago
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