Question

if the frequency of sound is doubled, it's wavelength will be??

Answer 1

Hey there !

Frequency x Wavelength = Velocity, this goes for sound, light, seismic waves, radio waves….

The velocity is set by the medium through which the waves travel. For most waves in most media the velocity is the same for all frequencies that the medium passes. Sometimes the velocity varies a little by frequency - this is called ‘dispersion’. Visible light gets dispersed by glass, for example (think prism, spectrum.)

Sound transmitting media can be dispersive, though most media aren’t significantly dispersive. So, in nearly all ordinary circumstances, velocity is approximately constant.

To answer the question, if you double sound frequency you will halve the wavelength, to a good approximation. However, certain 

Hope it helps you !

Answer 2

Velocity of Sound in air = 330 m/s approximately. It depends on factors like Pressure, temperature or density of air.

velocity = frequency * wavelength
v = f * λ

As the product of f & λ is a constant, if f is doubled, λ will become half of its value.


OR☺️


Wavelength will decrease when the frequency will increase as lamda is inversely proportional to frequency
Now if frequency = x
So wavelength = y
Now, frequency = 2x
Wavelength = 1/2y