A quantum of light having energy E has wavelength equal to `7200 overset(@)A`. Calculate the frequency of light which corresponds to energy eqal to one quarter of E.

Yellow light emitted from a sodium lamp has a wavelength of 480 nm. Calculate the frequency of this light.

Find the energy of each of photon which correspond to light of frequency 3*(10)15.

A hot metal emits photon of light with energy 3.0 (10*-19) J. Calculate the frequency and wavelength of the photon ?

Calculate the energy of a photon of light having frequency of 6 x 10^15 s-1

On which factor does the energy carried by a quantum of light depend?

In Young's double slit experiment,light of wavelength 5,000 overset @A is used.The screen on which fringes are projected is 1.5 m from the centre of the narrow slits. The third bright band on the screen is formed at a distance of 1 cm from the central bright band calculate the separation between the slits.

Light of wavelength 5000 overset @A falls on a photosensitive plate with work function 1.9 eV. Find energy of photon in eV(electron Volt)

A metal has a thresold wavelength of 6000 overset@A Calculte:Thresold frequency Calculate Work function of metal (given: h=6.62 xx 10^(-34)Js,e =1.6 xx 10^(-19)C)

A ray of light travelling in air have wavelength lambda ,frequency v,velocity u and intensity I.If this ray enters into water,then these parameters are lambda',v',u' and I' respectively.which of the following relation is correct?

According to collision theory, rate of the reaction effects by which of the following: 1. reacting molecules must react in the presence of catalyst. 2. molecules must have energy equal to or high E_a 3. molecules must have effective collisions due to proper orientation. 4. none of these.