NEET Physics Wave Motion MCQ Question with Solution

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 $\lambda = \frac{v}{f}$ , where $v = 1486 \text{ m/s}$ is the speed of sound in water and $f = 1000 \times 10^3 \text{ Hz}$ .

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