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3 marksDifficulty: Medium
The speed of sound in air is 340 m s−1 and in water 1,480 m s−1. A sound of frequency 500 Hz passes from air into water. Find its wavelength in each.
Original Khojo Papers practice question — not from a past board paper.
Answer
0.68 m in air and 2.96 m in water.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The frequency is set by the source and does not change, so λ = v/f gives 340/500 and 1,480/500.
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