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

Brass, Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called...

Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called brass. It is widely used as a current carrying and structural material in switches and plugs etc. Propertie

At which rate any part of a wave travels, Which of the answers listed below...

Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the waves: a) Propagati

Josephson effects, Josephson effects (B.D. Josephson; 1962) Electrical ...

Josephson effects (B.D. Josephson; 1962) Electrical effects observed while two superconducting materials are separated through a thin layer of insulating material.

Stop watch, stop watch + least count+ picture of stop watch

stop watch + least count+ picture of stop watch

Give one example for thermoplastic and thermosetting, Give one example each...

Give one example each for thermoplastic and thermosetting polymers Thermoplastics - Polyethylene, PVC etc. Thermosetting plastics - Bakelite (Phenolfomaldehyde resin), Urea

What is the band width?, A data transmission rate; the maximum amount of in...

A data transmission rate; the maximum amount of information (bits/second) that can be transmitted along a channel is called band width.

Kilogram, kilogram; kg: The basic SI unit of mass, that only SI unit w...

kilogram; kg: The basic SI unit of mass, that only SI unit which still maintained by a physical artifact: a platinum-iridium bar kept in the International Bureau of Weights an

Blackbody, For a blackbody, the frequency at which maximum energy is emitte...

For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A.  Give a wavenumber for the wavelength of the infrared emission? B.  What is the tempera

Moment of inertia, define moment of inertia and it''s physical significance...

define moment of inertia and it''s physical significance

Determine the phase angle of the impedance, A transformer has 600 primary t...

A transformer has 600 primary turns and 150 secondary turns. The primary and secondary resistances are 0.25 and 0.01 respectively and the corresponding leakage reactances are 1.0 a

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