MHT CET Physics question
A transverse wave given by moves on a stretched string from one end to another end in 0.5 second. If 'x' and 'y' are in cm and 't' is in second, then the length of the string is [MHT-CET 2021]
Answer: (D)
Solution
cm/s = 30 m/s, so length m; 6, 9 and 12 m do not match. Hence the correct option is (d).