The wave number corresponds to radiations of 600 nm is x`xx10^y ` then `x/y`is_

What is the wave number of a radiation of wavelength 400 nm ?

Calculate the wave numbers corresponding to the following wavelengths (a) 2000 Å (b) 800 nm

The number of terms in the expansion of (x + y + x)^(10) , is

Calculate (i) the frequency of radiation when lambda= 2.5 mu, (ii) the wavelength of radiation when v =1368 k Hz, (iii) the wave number of radiation when lambda=460 nm, (iv) the energy of radiation when barv=4.0 xx 10^5 m^(-1) .

Compare the energies of two radiation one with a wavelength of 300 nm and other with 600 nm .

Infrared lamps are used in restaurants to keep the food warm. The infrared radiation is strongly absorbed by water, raising its temperature and that of the food. If the wavelength of infrared radiationis assumed to be 1500 nm, and the number of quanta of infrared radiation produced per second by an infrared lamp (that consumes enregy at the rate of 100 W and is 12% effcient only) is (x xx10^(19) , then the value of x is : (Given: h= 6.665xx10^(-34)J-s)

A bulb is emitted electromagnetic radiation of 660 nm wave length. The Total energy of radiation is 3 x 10^(-18) J The number of emitted photon will be : (h=6.6xx10^(-34)J xx s, C=3xx10^(8)m//s)

The wavelength of a radiation emitted by a sodium lamp is 600 nm. Find the frequency ?

A wavelength of 400 nm of electromagnetic radiation corresponds to

The frequency of a radiation belonging to radio waves is 3 xx 10^(7)Hz . Find the wave number and wavelength of the radiation.