A stone is rotated steadily in a horizontal circle with a period T by a string of length l. If the tension in the string is kept constant and l increases by 1%, what is the percentage change in T

Question:

28.A stone is rotated steadily in a horizontal circle with a period T by a string of length l. If the tension in the string is kept constant and l increases by 1%, what is the percentage change in T

Options :

a) 1%
b) 0.5%
c) 2%
d) 0.25%

Answer :

b) 0.5%

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