Standard Books Physics Speed of Sound MCQ Question with Solution

If the bulk modulus of water is 2100 MPa, what is the speed of sound in water?

A

1450 m s⁻¹

B

2100 m s⁻¹

C

1400 m s⁻¹

D

1200 m s⁻¹

Correct Answer

Option A

Detailed Explanation

The speed of sound in a medium is given by v = √(B/ρ), where B is the bulk modulus and ρ is the density. For water, using B = 2100 MPa and ρ = 1000 kg/m³, v ≈ 1450 m/s.

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