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

Friction, why is friction necessary

why is friction necessary

What is the kinematic chain and kinematic pair, Kinematic chain related to ...

Kinematic chain related to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system. As in the familiar use of the word chain, the rig

Thermoelectric power:, The rate of modification of thermo emf with the chan...

The rate of modification of thermo emf with the change in the temperature of the hot junction is known as thermoelectric power.

Motion in one dimension, If Joe rides his bicycle in a straight line for 15...

If Joe rides his bicycle in a straight line for 15 min with an average velocity of 12.5 km/h south, how far has he ridden?

nuclear radiation detectors and dielectrics, What do you mean by dead time...

What do you mean by dead time in GM counter? Draw a neat diagram at GM counter and explain its working. Mention some of its applications. Give basic principle of Geiger-Muller coun

What is magnetic maps, Over the universe differ in magnitude from place to ...

Over the universe differ in magnitude from place to place. It is get that many places have the similar value of magnetic components. The lines are illustrated connecting all places

Horizontal and vertical components , a cat climbs 20 m directly up a tree. ...

a cat climbs 20 m directly up a tree. what is the horizontal component of the cat''s displacement

Infinitesimal element of the charge distribution, In computing the electric...

In computing the electric field at some point P in the x-y plane of a Cartesian coordinate system due to a linear charge distribution in the x-y plane each contribution to the elec

Explain any one of the drawbacks of rutherford atom model, Q. Explain any o...

Q. Explain any one of the drawbacks of Rutherford atom model. As-per to the classical electromagnetic theory the accelerating electron must radiate energy at a frequency propo

Power, if a big person and a small person run up the stairs in the same tim...

if a big person and a small person run up the stairs in the same time, which of them develops the most power

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