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

Current electricity, Why do magnetic field lines contract longitudinally an...

Why do magnetic field lines contract longitudinally and exert a lateral pressure?

Illustrate what is curvilinear motion, Q. Illustrate what is curvilinear mo...

Q. Illustrate what is curvilinear motion? Answer:- Fundamentally it's any motion that's formed or else bounded by curved as opposed to straight lines. In high school curvi

Explain electric potential, Electric Potential: Electric Potential veri...

Electric Potential: Electric Potential verifies the flow of charge. Its unit is volt, represented as "v".

Hard ferromagnetic substances, Hard Ferromagnetic Substances: Those sub...

Hard Ferromagnetic Substances: Those substances that do not lose their magnetism or removing from magnetic field are known as hard magnetic substance such as steel.

Get an expression for work done, Get an expression for work done during rev...

Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.

Parallel forces, .Define like and unlike parallel forces

.Define like and unlike parallel forces

Motion in one dimension, A tortoise can run with a speed of 0.12 m/s, and a...

A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 4.0 minutes. The torto

Is stone take longer for the downward motion, Is stone take longer for the ...

Is stone take longer for the downward motion than for the upward motion Consider a stone thrown vertically upward. if we take friction against air into account, we see that the

Electromagnetism., what is needed to make assignment on electromagnetism?

what is needed to make assignment on electromagnetism?

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