To increase the frequency by `20%`, the tension in the
string vibrating on a sonometer has to be increased by

The frequency of vibration of string can be increased by

The stirng stretched by tension T and length L vibrates in resonance with a tuning fork of frequency n. the tension in the stretched string is increased by 69% and length of string reduced by 35%. Then, the frequency of vibrating string is

A tuning fork of frequency 256 Hz gives 5 beats // s with a vibrating string of a piano. The beat frequency decreases to 2, when tension in the string is slightly increased. What was the frequency of the piano string before increasing the tension ?

A tuning fork of frequency 510 Hz is vibrated with a sonometer wire and 4 beats per second are heard. The beat frequency increases if the tension in the string is slightly increased. The original frequency of the string is

A tuning fork of frequency 512 Hz is vibrated with sonometer wire and 6 beats per seconds are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is

A tuning fork of frequency 512 Hz is vibrated with sonometer wire and 6 beats per seconds are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is

A tunning fork is frequency 512Hz is vibrated with a sonometer wire and 6 beats per second as heard The beat frequency reduces if the tension in the string of slightly increased. The original frequency of vibration of the string is

A tuning fork of frequency 512 Hz is vibrated with sonometer wire and 6 beats per seconds are heard. The beat frequency reduces if the tension in the string is slightly increased. The original freqency of vibration of the string is