Home
Class 12
CHEMISTRY
The number of photons of light having wa...

The number of photons of light having wave number x in 1J of energy source is (Plank's constant=h, velocity of light =c)

A

hcx

B

hc/x

C

`x/(hc)`

D

`1/(hcx)`

Text Solution

Verified by Experts

The correct Answer is:
D
Energy of photon `=hv=(hc)/(lamda)` or `hc.barv=hcx`
No. of photons in `1J=1/(hcx)`
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (LEVEL II)|90 Videos

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (LEVEL III)|10 Videos

  • STATES OF MATTER

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTIONS|12 Videos

  • SURFACE CHEMISTRY

    MODERN PUBLICATION|Exercise RECENT EXAMINATION QUESTIONS|15 Videos

Similar Questions

Explore conceptually related problems

If the energy of a photon of light is given by E=kh^(x)c^(y)lambda^(z), where h = Planck's constant, c = velocity of light and lambda = wavelength then values of x,y,z in order are :

Minimum number of photons of light of wavelength 4000 Å which provide 1 J energy

The energy of photon of reddish light having wavelength 660nm is ( h=6.6xx10^(-34)Js )

We can say that the energy of a photon of frequency v is given by E = hv, where h is planck's constant. The momentum of a photon is p = h//lambda, where lambda is the wavelenght of photon, then we may conclude that velocity of light is equal to

The ionization energy of hydrogen atom in the ground state is 1312 kJ "mol"^(-1) . Calculate the wavelength of radiation emitted when the electron in hydrogen atom makes a transition from n = 2 state to n = 1 state (Planck’s constant, h = 6.626 xx 10^(-34) Js , velocity of light, c = 3 xx 10^8 m s^(-1) , Avogadro’s constant, N_A = 6.0237 xx 10^23 "mol"^(-1) ).

Calculate the number of photon of light with a wavelength of 6000 Å that provide I joule of energy.

Which of the following phenomena support the wave theory of light ? (a) scattering (b)interference (c) diffraction (d) velocity of light in a denser medium is less than the velocity of light in the rarer medium.