Assertion: Rayleigh scattering can be considered as elastic collisions of photons with massive particle. Reason: In Rayleigh scattering, the energy of incident and scattered is same

Question

Assertion: Rayleigh scattering can be considered as elastic collisions of photons with massive particle. Reason: In Rayleigh scattering, the energy of incident and scattered is same (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

In Rayleigh scattering, when a photon (of momentum P) collide with a very massive particles (of mass m) (distant particles,…… etc.) then the momentum transferred will be P or 2P
so energy transferred is

\frac{P ^{2}}{2 m}

or

\frac{( P ^{2} )}{2 m}

which will be very small.

Q. Assertion : Rayleigh scattering can be considered as elastic collisions of photons with massive particle. Reason: In Rayleigh scattering, the energy of incident and scattered is same

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

In Rayleigh scattering, when a photon (of momentum P) collide with a very massive particles (of mass m) (distant particles,…… etc.) then the momentum transferred will be P or 2P so energy transferred is 2mP2​ or 2m(P2)​ which will be very small.

Q. Assertion : Rayleigh scattering can be considered as elastic collisions of photons with massive particle.
Reason: In Rayleigh scattering, the energy of incident and scattered is same

In Rayleigh scattering, when a photon (of momentum P) collide with a very massive particles (of mass m) (distant particles,…… etc.) then the momentum transferred will be P or 2P
so energy transferred is $\frac{P ^{2}}{2 m}$ or $\frac{( P ^{2} )}{2 m}$ which will be very small.