Home
Class 11
PHYSICS
The disc of a siren has 100 holes and ro...

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`)

Text Solution

Verified by Experts

The correct Answer is:
1666.67 Hz, 0.21 m
Promotional Banner

Topper's Solved these Questions

  • INTENSITY AND PITCH OF MUSICAL NOTES

    NN GHOSH|Exercise EXERCISE|14 Videos

  • HYDROSTATICS

    NN GHOSH|Exercise EXERCISES|59 Videos

  • ISOTHERMAL AND ADIABATIC PROCESS

    NN GHOSH|Exercise All Questions|29 Videos

Similar Questions

Explore conceptually related problems

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 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.

If pipe open at both the ends has an effective length of 0.5m, then the frequency of the note which is octave its fundamental frequency will be (Velocity of sound in air is 340m/s)

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 emited sound is in unison with a tuning frok of frequency

Two trains A and B are approaching a platfrom from opposite directions .The siren in the station is making a sound at a frequency 4kHz.The passengers in trains A and B hear siren at frequencies 4.5 and 5kHz respectively.Then the velocities of the trains A and B are (velocity of sound in air =340 m/s)

A man sets his watch by the sound of a siren placed at a distance 1 km away . If the velocity of sound is 330 m//s