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
A flywheel rotates at a constant speed of 3000 r.p.m. The angle described by the shaft in one second is
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
A sonometer wire for which the length of the vibrating segment is 1.5 m is vibrating in its first overtone. It is in unison with a tuning fork of frequency 256Hz. Calculate the speed of the waves in the wire.
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 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
Two sirens situated one kilometer apart are producing sound of frequency 330 Hz. An observer starts moving from one siren to the other with a speed of 2m//s . If the speed of sound be 330 m//s , what will be the beat frequency heard by the observer?
A source and an observer are moving towards each other with a speed equal to v/2 where v is the speed of sound. The source is emitting sound of frequency n . The frequency heard by the observer will be
