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

What is the net flux coming out of the surface, An electric dipole of dipol...

An electric dipole of dipole moment 20, X 10 -6 C.m is enclosed by a closed surface. What is the net flux coming out of the surface?

Define neutron, Neutron is a fundamental particle which is necessary consti...

Neutron is a fundamental particle which is necessary constituent of all nuclei except that of hydrogen molecule. It was discovered by Chadwick. (1) The charge of neutron: It is

Amperes law, Ampere's law, modified form: The line integral of the mag...

Ampere's law, modified form: The line integral of the magnetic field about a closed curve is proportional to the total of two terms: first one, the algebraic total of electric

Disadvantages of d.c. transmission of power, Disadvantages of D.C. Transmis...

Disadvantages of D.C. Transmission of power 1. Electric power cannot be produced at high d.c. voltages because of  commutation problem. 2. The d.c. voltage cannot be stepped

Light and sound, Does a piece of glass reflect more light than a piece of p...

Does a piece of glass reflect more light than a piece of paper?

Charge Quantization, Can you please, explain what is ''n'' in this equation...

Can you please, explain what is ''n'' in this equation: Q=ne?

What is slowly leaking box, What is Slowly Leaking Box? An ideal gas o...

What is Slowly Leaking Box? An ideal gas of atoms of number density at an absolute temperature is restricted to a thermally isolated container that has a small hole of area A

Describe the construction and working of acousting grating, Describe the co...

Describe the construction and working of acousting grating. Construction and Working of Acousting Grating: The liquid is acquired into a glass cell. The Piezo-electric cryst

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