Question: A string of length 𝐿 is fixed at one end and carries a mass 𝑀 at the other end. The string makes 2/𝜋 revolutions per 𝑠𝑒𝑐𝑜𝑛𝑑 around the vertical axis through the fixed end as shown in figure , then tension in the string is

(A) 𝑀𝐿
(B) 2 𝑀𝐿
(C) 4 𝑀𝐿
(D) 16 𝑀𝐿
Answer: option (D)
Solution:

