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

Explain biot savart law and measure magnetic field, a)  Explain ampere's la...

a)  Explain ampere's law and calculate magnetic field at any point P beacuse of (i)  Infinite long wire (ii)  Inside a solenoid (iii)  Inside a toroid   b) Explain Biot S

Refractive index, I''m looking for help with a particular project regarding...

I''m looking for help with a particular project regarding calculating specific refractive index calculations / measurements using a mirror. This help will involve practical assista

Electrostatics, is the potential in the cavity of a charged conductor zero

is the potential in the cavity of a charged conductor zero

Determine concept of pressure, A woman wearing high heels briefly supports ...

A woman wearing high heels briefly supports all her weight on the heels. If her mass is 45 kg and each heel has an area of 1.2 cm 2 , what pressure does she exert on the floor

Explain nuclear reactor, Nuclear Reactor: During fission large amount o...

Nuclear Reactor: During fission large amount of energy is free in the form of heat. A system, which is used to get controlled amount of heat energy from nuclear fission is know

How do you define free radical addition reaction?, When unsaturated compoun...

When unsaturated compounds undergo addition reactions with free radicals, it is known as free radical addition reaction.

Electrostatics, Define drift velocity and derive an expression for it?

Define drift velocity and derive an expression for it?

Determine the forbidden gap of silicon, For silicon the forbidden gap is ...

For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.

Nuclear Physics, what is the difference between nuclear fusion and nuclear...

what is the difference between nuclear fusion and nuclear fission?

Resistance, RESISTANCE: An electric current is a flow of free electrons...

RESISTANCE: An electric current is a flow of free electrons through a conductor. The size of current flowing through a conductor for a given applied voltage depends on: • T

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