" it water,it produces a note of "

A pipe opened at both ends prpduces a note of frequency f_(1) . When the pipe is kept with 3/4th of its length in water, it produces a note of frequency f_(2) . The ratio f_(1)/f_(2) is

A pipe opened at both ends prpduces a note of frequency f_(1) . When the pipe is kept with 3/4th of its length in water, it produces a note of frequency f_(2) . The ratio f_(1)/f_(2) is

A pipe open at both produces a note of fundamental frequency v_(1) When the pipe is kept with 3/4 th of its length in water, it produces a note of fundamental frequency v_(2) The ratio of v_(1)/v_(2) is

A string when stretched with a force of 18 kg it produces a note of frequency 652 Hz. What is the force required to produce an octave of the note?

What is the fractional change in tension in a sonometer wire of constant length to produce a note one octave lower than the previous note?