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Standard XII

Physics

Wave on a String

The length of...

Question

The length of a string is $1 m$ , tension in it is $40 N$ and mass of the string is $0.1 k g$ . Then the velocity of transverse waves produced in the string will be

400 m s^{- 1}

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180 m s^{- 1}

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80 m s^{- 1}

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20 m s^{- 1}

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Solution

The correct option is D $20 m s^{- 1}$
The velocity of the transverse wave propagating in the string is $v = \sqrt{\frac{T}{m}} = \sqrt{\frac{40}{\frac{0.1}{1}}} = 20 m / s$

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The length of a string is 1 m, tension in it is 40 N and mass of the string is 0.1 kg. Then the velocity of transverse waves produced in the string will be

The correct option is D 20 ms−1The velocity of the transverse wave propagating in the string is v=√Tm=  ⎷400.11=20m/s

The length of a string is $1 m$ , tension in it is $40 N$ and mass of the string is $0.1 k g$ . Then the velocity of transverse waves produced in the string will be

The correct option is D $20 m s^{- 1}$
The velocity of the transverse wave propagating in the string is $v = \sqrt{\frac{T}{m}} = \sqrt{\frac{40}{\frac{0.1}{1}}} = 20 m / s$