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

Michelson interferometer, How michelson interferometer is used to determine...

How michelson interferometer is used to determine the wavelength difference between the D1 and D2 lines of sodiun

Evaluate the maximum work done, 10 moles of an ideal gas expands reversibly...

10 moles of an ideal gas expands reversibly and isothermally from a volume if 5 lit. to 50 lit. at 25°C. Find the maximum work done? Express the result in Joules.

Absolute and relative permeability of a medium, Distinguish between absolut...

Distinguish between absolute permeability and relative permeability of a medium Absolute Permeability: 1. Absolute permeability is the ability of the medium to allow th

Little fish in motion is caught by big fish, Little Fish in Motion is Caugh...

Little Fish in Motion is Caught by Big Fish The animation below portrays the inelastic collision among a extremely massive fish and a less massive fish. Before the collision, t

Applications/uses of transformers, (1)         F or supplying power from ...

(1)         F or supplying power from on alternating current power grid to equipment which uses a different voltage. (2)         Electrical power transmission over long dist

How is coiled, How is coiled, twisted or roped fibers terminated? Gener...

How is coiled, twisted or roped fibers terminated? Generally terms the same techniques as with PMMA apply, because this optics are no more that 0,75mm diameter PMMA fibers bunc

Spectrum, calour formed in pure and impure spectrum

calour formed in pure and impure spectrum

Precaution to minimize radiation danger, Precaution to minimize Radiation D...

Precaution to minimize Radiation Danger: 1. One should keep safe distance away from radiation emitting source. 2. The radiation from the reactor are shielded by thick concr

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