Standard Books Physics Wave Velocity MCQ Question with Solution

A body sends waves 100 mm long through medium A and 0.25 m long in medium B. If the velocity of waves in medium A is 80 cm s⁻¹. The velocity of waves in medium B is

A

1 m s⁻¹

B

2 m s⁻¹

C

3 m s⁻¹

D

4 m s⁻¹

Correct Answer

Option B

Detailed Explanation

The frequency of the wave remains the same in both media. Using the formula v = λν, we find v_B = (0.25/0.10) × 0.80 = 2 m s⁻¹.

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