The disc of a siren containing 60 holes ...

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

10 Hz

360 Hz

216 Hz

6 Hz

Text Solution

Verified by Experts

The correct Answer is:

Frequency = `(360//60) xx 60 = 360 Hz`.

Topper's Solved these Questions

KARNATAKA CET 2003
KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
KARNATAKA CET 2006
KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

A glass tube is open at both the ends.A tuning fork of frequency f resonates with the air column inside the tube.Now the tube is placed vertically inside water so that half the length of the tube is filled with water.Now the air column inside the tube is in unison with another fork of frequency f'. Then

Two cars are approaching each other on a straight road and moving with a velocity of 60 kmph. If the sound produced in one car is of frequency 500 Hz, what will be the frequency of sound as heard by a person sitting in another car ? When the car has crossed and moving away from each other , what will be the frequency of sound as heard by the same period ? (speed of sound in air is 332 ms^(-1) )

A train whistling at constant frequency 'n' is moving towards a station at a constant speed V. The train goes past a stationary observr on the station . The frequecy 'n' of the sound as heard by the observe is plotted as function of time 't' . Identify the correct curve .

In an experiment with sonometer a tuning fork of frequency 256 Hz resonates with a length of 25 em and another tuning fork resonates with a length of 16 cm. Tension of the string remaining constant the frequency of the second tuning fork

A metre long tube open at one end with a movable piston at the other end, shows resonance with a fixed frequency source ( a tuning fork of frequency 340Hz) when the tube length is 0.255m or 0.793m. Estimate the speed of sound in air at the temperature of the experiment. The edge effects may be neglected.

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

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2005-PHYSICS

Infrared radiation was discovered in 1800 by
Text Solution
|
A particle on the trough of a wave at any instant will come to the mea...
Text Solution
|
The disc of a siren containing 60 holes rotates at a constant speed of...
Text Solution
|
The ratio of velocity of sound in hydrogen and oxygen at STP is
Text Solution
|
In an experiment with sonometer a tuning fork of frequency 256 Hz reso...
Text Solution
|
The apparent frequency of a note is 200 Hz. When a listener is moving ...
Text Solution
|
The wave theory of light, in its original form was first postulated by
Text Solution
|
If a liquid does not wet glass, its angle of contact
Text Solution
|
The magnitude of I in ampere unit
Text Solution
|
Electron of mass m and charge q is travelling with a speed v along a c...
Text Solution
|
From figure describing photoelectric effect we may infer correctly tha...
Text Solution
|
Two coherent light beams of intensity I and 41 are superposed. The max...
Text Solution
|
The electron in a hydrogen atom makes a transition from n = n(1) to n ...
Text Solution
|
If the forward voltage in a diode in increased, the width of the deple...
Text Solution
|
Two nucleons are at a separation of one Fermi. Protons have a charge o...
Text Solution
|
The electric flux Gaussian for surface A that enclose the charged part...
Text Solution
|
Four metal conductors having different shapes 1. a sphere 2. cylindric...
Text Solution
|
The potential to which a conductor is raised, depends on
Text Solution
|
The work done in carrying a charge q once round a circle of radius r w...
Text Solution
|
An air filled parallel plate condenser has a capacity of 2 pF. The sep...
Text Solution
|