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

Explain scattered electrons made strong diffraction pattern, Davisson and G...

Davisson and Germer scattered electrons from a crystal of nickel.  The scattered electrons formed a strong diffraction pattern. What important conclusion was drawn from this experi

Low of succeve disintigration, Dirive an expretion for low of succecive dis...

Dirive an expretion for low of succecive disintigretion

Explain air resistance force (fair), Air Resistance Force (Fair) : special ...

Air Resistance Force (Fair) : special type of frictional force that acts upon objects as they travel by the air. Force of air resistance is often observed to oppose the motion of a

Explain formation of a potential barrier in a p-n junction, Explain formati...

Explain formation of a potential barrier in a p-n junction Formation  of  Potential  Barrier  in  a  P-N  junction:    The  two  kinds of  extrinsic semiconductors p-type and

Define self inductances and mutual inductances, a. Measure the force among ...

a. Measure the force among two linear, parallel, long conductors carrying currents in opposite direction. b. Measure self inductances and mutual inductances among two co-axial s

What are the particles that make up an atom, Q. Illustrate what are the thr...

Q. Illustrate what are the three particles that make up an atom? Answer:- Atoms are conjured of neutrons, protons, and electrons. The protons as well as neutrons are found

Electrostatics, What is quantisation of electric charge?

What is quantisation of electric charge?

What is the sun, What is The sun? The sun:-  Sun the brightest object i...

What is The sun? The sun:-  Sun the brightest object in the universe. It is main body of the solar system. It has a luminous sphere approximately 8,65,000 miles in diameter. It

Two concentric conducting shell, Two concentric conducting shells a and b a...

Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer su

Valve & digital electronics: thermionic emission, (i) The procedure of ejec...

(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current

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