Question

Two identical strings of a stringed musical instrument are in unison when stretched with the same tension. The tension in one string is increased by 1%, the musician hears 4 beat/s, then the frequency of the note when the string were in unison , will be
A. 796Hz
B. 800Hz
C. 804Hz
D. 808Hz

Answer 1

Correct Answer - B
`(Deltan)/(n) = 1/2(DeltaT)/(T)`
`4/n_1 = 1/2xx1/100`
`n_1 = 800Hz.`