Yellow light emitted from a sodium lamp has a wavelength `(lambda)` of 580 nm. Calculate the frequency (v) and wave number `(barv)` of the yellow light.

Calculate the frequency and wave number of H_a line of Balmer series in hydrogen spectrum.

Calculate the wavelength in nm of an X-ray wave of frequency 2 xx 10^18 Hz

Calculate the wavelength in nm of an X-ray wave of frequency 2 xx 10^18 Hz

A 25 watt emits monochromatic yellow light of wavelength of 0.57 mu m . Calculate the rate of emmision of quanta per second.

Calculate the wavelength, frequency and wave number of a light wave whoce periods is 2.0 xx 10^-10 s .

A certain sound wave in air has a speed 340m//s and wavelength 1.7m, For this wave, calculate (i) the frequency (ii) time period.

If the wavelength of a certain wave of light is 2.0 xx 10^3 cm. What is the frequency of this wave?

A yellow light travels from rarer medium to deser medium. At the value of critical angle, the ray will

In a biprism experiment, a source of light has a wavelength of 5500 overset@A . Calculate the change in fringe width, if the screen is at a distance of 1 m from the points which are 1mm apart.

If the frequency of the light beam is 14 xx 10^14 Hz . The wave number of the beam of light in air is