1.

A song was heard by a person who is at certain distance from a temple wherein the frequency of the sound is 3 kHz and the wavelength 20 cm. If the sound reaches the person in 5 seconds find the distance travelled by the sound. (1) 5 km (2) 2 km (3) 4 km (4) 3 km

Answer»

Correct option is (4) 3 km



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