Compton effect and quantum nature of light, Physics

Q. Describe Compton effect. Drive an expression for Compton shift. How does it support the particle nature of light. 

Compton Effect and Quantum Nature of Light

A.H. Compton in 1923, while studying the scattering of  X rays by a block of paraffin observed that the wavelength of the scattered radiation was greater than wavelength of incident radiation and this shift in wavelength was dependent on the angle of the scattering. The wavelength of scattered radiation is found maximum at right angles to the direction of incident beam. This effect is known as Compton Effect.

Classical theory is failed to explain this observed effect of increment in wavelength. According to classical theory the wavelength of incident radiation and scattered radiation must be same. Compton explain this effect by assuming that light is consist of a large number of oscillating particles vibrate with different frequencies known as Quanta having energy. Thus Compton effect gives us an experimental evidence of quantum nature of light.

Theory of Compton Effect

Let us consider the phenomenon of scattering as a elastic collision between the incident photon and electron. The conservation of energy and momentum will hold since collision is elastic.

Compton assumed the electron to be free and at rest before collision with the incident photon. After the collision has taken place, the relativistic mass of the electron to be electron to be considered instead of its rest mass. A small parts of energy of high energy photon is also being transferred to the electron is this process.

During the collision process some of the part of this energy is imparted to the electron, which in turn gain kinetic energy and so recoil. The direction of scattered photon is given by angle q, whereas the direction of recoil electron. 

Posted Date: 7/11/2012 3:09:06 AM | Location : United States







Related Discussions:- Compton effect and quantum nature of light, Assignment Help, Ask Question on Compton effect and quantum nature of light, Get Answer, Expert's Help, Compton effect and quantum nature of light Discussions

Write discussion on Compton effect and quantum nature of light
Your posts are moderated
Related Questions

The conductivity of an extrinsic semiconductor (A) Decreases with temperature. (B) Increases with temperature. (C) Remains constant with temperature. (D) Decrea

The mass of an atom is constituted mainly by: (1) Neutron and neutrino                 (2) Neutron and electron    (3) Neutron and proton         (4) Proton and electr

I need to solve and write a MATLAB code the heat equation by two methods ( Crank-Nicolson method and asymptotic method )

The electric utility invoice for a household shows a usage of 1245 kWh during a certain 30-day period. What is the average power consumption during this period?

Electric Field of an Oscillating Charge An electric charge is executing simple harmonic motion, and the animation displays the electric field lines around it.

A water skier lets go of the tow rope upon leaving the end oaf jump ramp at a speed of 14.0 m/s. The skier has a speed of 13.0m/s at the highest point of the jump. Ignoring air res

Ripple tank The concept of reflection and refraction of light waves can be understood by the study of reflection and refraction of waves on water. The water waves travel

The light is incident on a rotating Nicol prism and the intensity of the emergent light beam becomes zero and maximum periodically. What we can derive about the state of polarizati

After the parallel algorithm has been written as well as executed performance of both algorithms is one of other main concerns. In order to examine performance of algorithms there