The disc of a siren has 100 holes and rotates at the rate of 1000 revolutions per mintue. Find the frequency and wavelength of the note emitted by the siren. (Velocity of sound in air `= 350 m//s`)

The disc of a Siren has n holes and the frequency of its rotation is 300 r.p.m. It produces a note of wavelength 2.4m., when the velocity of sound in air is 360 m/s. The value of n is

A siren with 20 holes in its disc given 5 beats per second with a closed pipe sounding its fundamental note when the disc makes 2400 revolution per minute. What is the effective length of the pipe? (velocity of sound in air = 360 ms^(-1) )

The disc of siren has n holes and the frequency of its rotation is 300 rpm. It produces a notes of wavelength 2.4 m. If the velocity of sound in air is 360 m/s, then the value of n will be

A rocket is moving at a speed of 200m/s towards a stationary target. While moving, it emits a wave of frequency 1000Hz. Calculate the frequency of the sound as detected by the target. (Velocity of sound in air is 330m/s )

A disc siren with certain number of holes rotates uniformly 270 times in one and half minute. The frequency of the note emitted is 48 Hz. If the velocity of sound in air is 336 m s^(-1) , find its wavelength and number of holes on the disc.

The fundamental frequency of a 100 cm long sonometer wire is 330 Hz. Find out the velocity of transverse wave in the wire and the wavelength of the resulting sound waves in air . Given , velocity of sound in air = 330 m * s ^(-1) .

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.