Two strings are tuned to the same pitch (#184# Hz). Later you increase the tension in one string. Now, when both strings are played, there are 2 beats every second. What is the new frequency of the string that was tuned?

1 Answer
Shreya
Feb 17, 2018

186 Hz

Explanation:

We know,velocity of a wave=#"frequency"xx lamda#
also, velocity =#sqrt(Tension//mu)#
now,if i increase the tension in one of them,velocity increases and consequently the frequency becomes higher,
thus,the value of the new frequency will be greater than 184Hz.
we know,#n_1~n_2="beat" " frequency"#
plugging in the values,.
#n_1#=184+2 or 186Hz

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