Physics-Wave Motion

NEET Physics Wave Motion MCQ Question

Type: MCQ-numerical-Medium-Class 11

A bat emits ultrasonic sound of frequency 1000 kHz in air. What is the wavelength of the transmitted sound when it meets a water surface?

A

486 mm

B

14.86 mm

C

0.340 mm

D

4 mm

Correct Answer

Option A

Detailed Explanation

The wavelength of the transmitted sound in water is calculated using the formula λ=vf\lambda = \frac{v}{f}, where v=1486 m/sv = 1486 \text{ m/s} is the speed of sound in water and f=1000×103 Hzf = 1000 \times 10^3 \text{ Hz}.

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