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A 5.5 metre length of string has a mass of 0.035 ~kg . If the tension in the string is 77 ~N , the velocity of the wave on the string is

Options

  1. A210 ~m ~s ⁻¹
  2. B110 ~m ~s ⁻¹
  3. C40 ~m ~s ⁻¹
  4. D55 ~m ~s ⁻¹

Correct answer

C. 40 ~m ~s ⁻¹

Step-by-step solution

Here, m= 0.035 5.5 , T=77 ~N Velocity on the string is v= T / m = 77 0.035 / 5.5 = 77 5.5 0.035 =110 ~m ~s ⁻¹

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