Q. What is Fresnel diffraction?

a) The source as well as the screen are at finite distances from the obstacle producing diffraction.

b) The wave front suffer diffraction is either spherical or cylindrical.

c) The diffracted rays can't be brought to focus with the help of a convex lens.

Posted Date: 7/16/2013 8:41:52 AM | Location : United States

Ask an Expert

Related Discussions:- What is fresnel diffraction, Assignment Help, Ask Question on What is fresnel diffraction, Get Answer, Expert's Help, What is fresnel diffraction Discussions

Write discussion on What is fresnel diffraction
Your posts are moderated

Write your message here..

Related Questions

What is photoelectric effect, Q What is photoelectric effect? Photoelec... Q What is photoelectric effect? Photoelectric release is the phenomena by which a good number of substances chiefly metals emit electrons under the influence of radiation such

What is radioactivity, What is radioactivity? Radioactivity: The proc... What is radioactivity? Radioactivity: The process of spontaneous disintegration of the nuclei of heavy elements with the emission of certain radiations is known as natural ra

Acceleration, An object starts from point A and moves with constant acceler... An object starts from point A and moves with constant acceleration in a straight line. 5 seconds after the start, it crosses point B, and 7 seconds after the start it crosses poin

Constraint relation : wedge and block, A block goes on a wedge which in tu... A block goes on a wedge which in turns goes on a horizontal table, as given in figure. The wedge angle is Φ. As long as the wedge is in met with table, we have the trivial const

Electric dipole, what should be the orientation of an electric dipole so th... what should be the orientation of an electric dipole so that its potential enrgy is minimum

Skin diease , which radio isotpo used in skin diease treatment which radio isotpo used in skin diease treatment

Average speed, A boy goes to market with a average speed of 29 km/h.He retu... A boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h.Find average speed for whole journey.

Equation of simple harmonic motion (shm), The essential and sufficient cond... The essential and sufficient condition for a SHM:-

Get an expression for work done, Get an expression for work done during rev... Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.

..periodic table, assignment complete the following table assignment complete the following table