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

Illustrate the principle of potentiometer, Illustrate the principle of pote...

Illustrate the principle of potentiometer. Define a mathematical experiment for the comparison of emf's of two cells. Define the principle and construction of potentiometer and

Filtering and image masking, Regarding filtering, image masking & convoluti...

Regarding filtering, image masking & convolution. Assume we have the following Infra-Red image:   What filter would you use to remove the impulsive noise in the first row o

What are non-mechanical waves , The waves which do not needs medium for the...

The waves which do not needs medium for their propagation are known as non- mechanical or electromagnetic waves. Examples : Light, heat (Infrared), radio waves, gamma- rays, X-r

Ultrasonic-interferameter , Ultrasonic-interferameter 1.defenition 2.app...

Ultrasonic-interferameter 1.defenition 2.applications 3.uses 4.free lenth 5.Compressibility Ans)An Ultrasonic Interferometer is a easy and direct device to determine the ul

Damping coefficient, what is the physical significance of damping coefficie...

what is the physical significance of damping coefficient?

Radiation therapy-megavoltage therapy, Megavoltage  therapy: Kerst dev...

Megavoltage  therapy: Kerst developed the betatron  which accelerates electrons to high energy .It open a new radiation therapy era-the supervoltage or  megavoltage era.Another

For 9th, can i get this job?

can i get this job?

Holes in semiconductors , (1) Holes works as virtual charge, although there...

(1) Holes works as virtual charge, although there is no charge on holes. (2) Effectual volume of hole is more than electron. (3) Mobility of hole is fewer than electron.

Determine the exaggeration produced by the two lens system, Q. (a) Determin...

Q. (a) Determine the'effective  focal length' of the grouping of the two lenses in Exercise 9.10 if they are placed 8.0 cm a part with their principal axes  coincident. Performed 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