Compute the thickness of the film, Physics

Assignment Help:

Q. A light of wavelength 60000A falls normally on a thin air film, 6 dark fringes are seen between two points. Compute the thickness of the film.

2μt = nλ

Thickness of the film t     = nλ/ 2μ

     = 6 X 6000 X 10 -10/ 2

     = 1.8 X 10-6 m.


Related Discussions:- Compute the thickness of the film

Law of motion, deduction Newton law - KEPLUR law

deduction Newton law - KEPLUR law

Explain capacitor, A new 90.0-V battery with a storage capacity of 2.5 x 10...

A new 90.0-V battery with a storage capacity of 2.5 x 10 4 C charges a 6800 μF capacitor with the switch in position A. Then the switch is thrown to position B to discharge th

Explain loudness, Loudness: It is the characteristics of sound by a fai...

Loudness: It is the characteristics of sound by a faint sound can be distinguish by a loud sound is known as loudness.

Determine the change in entropy, Determine the change in entropy, in joules...

Determine the change in entropy, in joules, when 5 moles of an ideal gas expands from a value of 4 lits. to 40 lits. at 27°C. (R = 8.314 JK -1 mol -1 )

Define weightlessness, The weight of a body is the force with which it is a...

The weight of a body is the force with which it is attracted in the direction of the centre of earth. When an object is stationary with respect to the planet, its weight equivalent

Explain about the amplitude mode of data presentation, Explain about the am...

Explain about the amplitude mode of data presentation. The A-mode: The A-mode or the Amplitude mode of data presentation exhibits the amount of obtained ultrasonic energy li

Making a jam jar aquarium, Making a jam jar aquarium If a large glass t...

Making a jam jar aquarium If a large glass tank is not available, practically any glass vessel can be used as a easy aquarium if it is well stocked with submerged water plants

Explain the term modulation, Explain the term modulation. Name three dissim...

Explain the term modulation. Name three dissimilar types of modulation used for a message signal using a sinusoidal continuous carrier wave. Describe the meaning of any one of thes

Kinematics, An aereplane has velocity 500m/s with respect to air. Wind blow...

An aereplane has velocity 500m/s with respect to air. Wind blows with velocity 20m/s along north. Then in what direction pilot should be heading so as to go along North-east direct

Portray is a principal ray for the case of a concave lens, Question: Po...

Question: Portray is a principal ray for the case of a concave lens. Where does it depart from here? Ans: In the situation of a diverging lens there is a ray that

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