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

Brief information abot inductor, INDUCTOR:- An inductor (also choke, coil, ...

INDUCTOR:- An inductor (also choke, coil, or reactor) is a passive two-terminal electrical component that stores energy in its magnetic field. For comparison, a capacitor stores en

SOUND, Explain and write about sonar

Explain and write about sonar

What instrument is used to measure volume, What instrument is used to measu...

What instrument is used to measure volume? Liquid volume is calculated with beakers, measuring cups, spoons, graduated cylinders, and the like. For regular objects, solid volum

Direction of electric field, Electric field (intensity)   is a vector numbe...

Electric field (intensity)   is a vector number. Electric field because of a positive particle is always away from the charge and that because of a negative charge is always toward

Optics, determination of suger concentration in water by refractive index

determination of suger concentration in water by refractive index

Oriental polarization, In the case of orientation polarization we have mate...

In the case of orientation polarization we have material with built _in dipoles that are independent of each other, i.e. they can rotate liberally in sharp distinction with ionic p

Illustrate a phasor diagram for the two-wattmeter method, (a) Show that the...

(a) Show that the total power in a 3-phase, 3-wire system using the two-wattmeter process of measurement is given by the sum of the wattmeter readings. Illustrate a connection diag

#title.kinematics., what is the difference between diplacement and distance...

what is the difference between diplacement and distance

What is ionisation potential energy, Q. What is ionisation potential energy...

Q. What is ionisation potential energy? For hydrogen atom the energy necessary to remove an electron from first orbit to its outermost orbit (n=∞) is 13.6-0 = 13.6eV. This ene

#title.gravtation., the weight of man is 50kg in earth what is weight of ma...

the weight of man is 50kg in earth what is weight of man 15% of its weight in moon

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