Why the centre of newtons rings pattern appears dark, Physics

Assignment Help:

Q. Why the centre of Newton's rings pattern appears dark?

The thickness of the air film becomes zero at the point of contact of lens L with glass plate P. Therefore there is no path difference between the interfering waves. So it must appear bright. However the wave reflected from the denser glass plate has suffered a phase change of π while the wave reflected at the spherical surface of the lens has not suffered any phase change. Therefore the point O appears dark.


Related Discussions:- Why the centre of newtons rings pattern appears dark

Simple harmonic motion, what are the necessary conditions for a body to exe...

what are the necessary conditions for a body to execute simple harmonic motion?

What is electron holography, What is Electron Holography? Electron holo...

What is Electron Holography? Electron holography is an application of holography procedures to electron waves quite than light waves. Electron holography was invented through D

Calculate diameter of the ball, A ball is 6.5 m from a convex mirror with a...

A ball is 6.5 m from a convex mirror with a magnification of 0.75. If the image is 0.25 m in diameter. What is the diameter of the actual ball?

Kinematics, an object has moved through a distance.can it have zero displac...

an object has moved through a distance.can it have zero displacement?if yes support your answer with an example

Do fibers have losses, Do fibers have losses? Everything in the univers...

Do fibers have losses? Everything in the universe is inefficient. It means that while a measured amount of something enters in a system, less comes out than initially went in.

Motion in one dimension, a car with an initial speed of 24.5 km/hr accelera...

a car with an initial speed of 24.5 km/hr accelerates at a uniform rate of 0.98 m/s^2 for 5.6sec. find the final speed and displacement of the car during this time.

Thermonuclear reactions, Thermonuclear reactions: The fusion reactions ...

Thermonuclear reactions: The fusion reactions which require extremely high temperatures are called thermonuclear reactions. The most important thermonuclear reactions take plac

Law, What is meant by gravitational law?

What is meant by gravitational law?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd