The disc of a siren revolves 600 times in on eminute and it is in unison with a tuning fork of frequency 480 Hz. Calculaate the number of holes in the disc.

The disc of a siren revolves 600 times in one minute and it is in unison with a tuning fork of frequency 480 Hz. The number of holes in the disc is

The disc of a siren revolves 600 times in one minute and it is in unison with a tuning fork of frequency 480 Hz. The number of holes in the disc is

A revolving ring in a siren revolves 420 times per minute and it produces 2 beats per second with a tuning fork of frequency 348 Hz . Choose the correct statement from the following.

A stretched wire of length 1 m and weighing 1 gram is in unison with a tuning fork of frequency 200 Hz. The tension in the wire will be

The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emitted sound is in unison with a tuning fork of frequency

The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emitted sound is in uniso with a tuning fork of frequency.

A stretched wire under a tension of 4 kg wt is in unison with a tuning fork of frequency 512 Hz. How should the tension be altered to make the wire vibrate in unison with a tuning fork of frequency 256 Hz ?

In one metre long open pipe what is the harmonic of resonance obtained with a tuning fork of frequency 480 Hz

What is the time-period of a tuning fork whose frequency is 200 Hz?

The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm . The emitted sound is in unison with a tuning fork of frequency