Question

In a fixed frequency vibrating-string experiment, three loops are observed between points A and B when the mass on one end of the string is 100 g. Two loops can be observed between A and B by replacing the 100-g mass with a mass of
(a) 150 g
(b) 225 g
(c) 44.4 g
(d) 66.7 g
(e) 300 g
My answer is (b). Is it correct?

Answer 1

yes 225 if you take the ratio of frequencies and masses

Answer 2

Thanks.