MHT CET 2026 Physics question
Sound waves travel at 350 m/s through a warm air and at 3500 m/s through brass. Which of the following is correct about the wavelength of a 700 Hz accoustic wave as it enters brass from warm air?
Answer: (C)
Solution
When a wave passes from one medium to another its frequency stays the same (it is fixed by the source), so changes in proportion to the speed. In air: m. In brass: $λ_2 =
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