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MHT CET 2026 (20 May, Shift 1) · Wave Basics & Properties of Sound

Wave Basics & Properties of Sound question from MHT CET 2026 (20 May, Shift 1)

Q1MHT CET 2026 · 20 MAY · SHIFT 1Easy

Wave Basics & Properties of Sound

A body sends waves $150$ mm long through medium P and $0.30$ m long in medium Q. If the velocity of wave in medium P is $80$ cm/s, the velocity of wave in medium Q in m/s is

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Answer: (a)

Frequency is set by the source and stays the same in both media: $n = \frac{v}{\lambda}$ .
$n = \frac{v_P}{\lambda_P} = \frac{0.80}{0.150} = \frac{16}{3}$ Hz
$v_Q = n\lambda_Q = \frac{16}{3} \times 0.30 = 1.6$ m/s
So the answer is (a) $1.6$ m/s.

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