Derive the equations `v = n lambda` , where n and `lambda` are frequency and wavelength .

If the enrgy of a frequency v is gives by E = hv where h is plank's constant and the momentum of photon is p = h//lambda where lambda is the wavelength of photon , then the velocity of light is equal to

The refractive index of light in glass varies with its wavelength according to equation mu (lambda) = a+ (b)/(lambda^(2)) where a and b are positive constants. A nearly monochromatic parallel beam of light is incident on a thin convex lens as shown. The wavelength of incident light is lambda_(0) +-Delta lambda where Delta lambda lt lt lambda_(0) . The light gets focused on the principal axis of the lens over a region AB. If the focal length of the lens for a light of wavelength lambda_(0) is f_(0) , find the spread AB.

Refractive index mu is given as mu=A+B/lambda^2, where A and B are constants and lambda is wavelength, then dimensions of B are same as that of

Electromagnetic radiation of frequency n , wavelength lambda , travelling with velocity v in air, enters a glass slab of refractive index mu . The frequency, wavelength and velocity of light in the glass slab will be respectively

A wave is represented by the equation y=A sin314[(t)/(0.5s)-(x)/(100 m)] The frequency is n and the wavelength is lambda .Then:

Velocity of sound is given by the expression, v= f xx lambda Where, v= velocity of the wave, f = frequency, lambda = wavelength Using the above information answer the following questions The velocity of sound in air is 344 m//"sec" . What is the wavelength of a sound wave of frequency 32Hz?

Velocity of sound is given by the expression, v= f xx lambda Where, v= velocity of the wave, f = frequency, lambda = wavelength Using the above information answer the following questions A wave travels at a speed of 330 m//s . If the wavelength is 2.2cm, what will be the frequency of the wave?

Velocity of sound is given by the expression, v= f xx lambda Where, v= velocity of the wave, f = frequency, lambda = wavelength Using the above information answer the following questions Calculate the wavelength of radio waves of frequency 10^(9) Hz. The speed of radio waves is 3 xx 10^(8)m//s