If a spring has time period T, and is cut into n equal parts

If a spring has time period T, and is cut into n equal parts, then the time period of each part will be

  1. T
  2. T√n
  3. nT
  4. T/√n

Answer

We know that time period of a spring is inversely proportional to the square root of spring constant.

If the spring is cut into n parts, then the new spring constant is given by

K' = nK

Therefore, time period of new spring is, T = T/√n

The correct option is D.