Compute the threshold wavelength, Physics

Assignment Help:

Q. The work function of a metal surface is 1.8 eV. Compute the threshold wavelength.

 Work function W = hγo = h C / λ 0

λ 0 = h C / W

= 6.626 X 10-34 X 3 X 10 8 / 1.8 X 1.6 X 10 -19

= (19.878 / 2.88) X 10-7 m

= 6.902 X 10-7 m


Related Discussions:- Compute the threshold wavelength

Calculate uniform magnetic field, The greatest induced EMF will happen in a...

The greatest induced EMF will happen in a straight wire moving at constant speed by a uniform magnetic field. when the angle among the direction of the wire's motion and the di

Explain the behaviour of the block, Wooden block sits on a level lab table....

Wooden block sits on a level lab table. A string draped over a pulley connects to a bucket that can be filled with lead pellets. Maggie needs to measure how much applied mass (pell

Iron is what type of magnetic material, Iron is what type of magnetic mater...

Iron is what type of magnetic material?  Is it: a)  Diamagnetic b)  Paramagnetic c)  Ferromagnetic d)  Non-magnetic Ans: Iron is ferromagnetic type of m

Evaluate the focal length of the lens, An object is placed 25.0cm from a th...

An object is placed 25.0cm from a thin converging lens. A screen is positioned so that a sharp image of the object is seen on the screen. When the object is moved 4.0cm closer to t

Eddy current loss is proportional to the how much frequency, Eddy current l...

Eddy current loss is proportional to the (A) Frequency.                       (B) Square of the frequency. (C) Cube of the frequency.    (D) Square-root of the frequency.

Corrugations, is there any Law of Physics acting in a weighted object place...

is there any Law of Physics acting in a weighted object placed in a corrugated paper and the paper can actually support it well thanky you :)

Antireflection films and interference filters, Q. What are antireflection f...

Q. What are antireflection films and interference filters?   Ans.   Anti reflecting Films: When a beam of light travels normally from a medium of refractive index µ2 to a me

Determine the change in temperature of water, What is the change in tempera...

What is the change in temperature of water after falling over a 50.0-m-tall waterfall? Suppose that the water is at rest just before falling off and just after it reaches the b

Vectors, The helicopter view in fig. p3.29

The helicopter view in fig. p3.29

Estimate the amount of heat removed, A cooling drum consists of a (horizont...

A cooling drum consists of a (horizontally) rotating, large stainless steel cylinder. The cylinder has a diameter D and a width of W. The cooling at the inside of the drum is so ef

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