A boy hears an echo of his own voice from a distant hill after 2 seconds. The speed of sound in air is 350 m/s. The distance of the hill from the boy is (A) 175 m (B) 200 m (C) 350 m (D) 250 m

A boy hears an echo of his own voice from a distant hill after 2 secon

1.	A boy hears an echo of his own voice from a distant hill after 2 seconds. The speed of sound in air is 350 m/s. The distance of the hill from the boy is (A) 175 m (B) 200 m (C) 350 m (D) 250 m
Answer» Correct option is (C) 350 m

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A boy hears an echo of his own voice from a distant hill after 2 seconds. The speed of sound in air is 350 m/s. The distance of the hill from the boy is (A) 175 m (B) 200 m (C) 350 m (D) 250 m

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