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

Determine the maximum power output, A mass flow of 10kg/s of water vapor ...

A mass flow of 10kg/s of water vapor at 30bar and 500 0 C flows steadily through the inlet an insulated turbine. The pressure of the water is reduced to 1bar at the turbi

Polytetrafluoroethylene capacitors, A highly polished metal surface is coat...

A highly polished metal surface is coated with a colloidal aqueous dispersion of P.T.F.E. it is force dried and sintered, until a continuous film is formed. These capacitors can wi

How do you use operational amplifier as differentiator, How do you use oper...

How do you use operational amplifier as differentiator and adder/subtractor. Fig. shows differentiator or differentiation amplifier. As its name implies, circuit performs mathe

Periodic table, true or false. All radioactive elements have been synthesiz...

true or false. All radioactive elements have been synthesized

Calculate the final velocity - magnitude of the impulse, A 42.0-kg skatebo...

A 42.0-kg skateboarder travelling at 1.50 m/s hits a wall and bounces off of it.  If the magnitude of the impulse is 150.0 kg·m/s. Calculate the final velocity of the skateb

Explain electromagnetic waves transverse, Using the Maxwell's equation expl...

Using the Maxwell's equation explain that electromagnetic waves transverse in nature.

Wedge problems, 8. System is shown in the figure. Assume that cylinder rema...

8. System is shown in the figure. Assume that cylinder remain is contact with the two wedges. Find the speed of cylinder at the given instant cylinder

Determine dielectric strength of transformer oil, The dielectric strength o...

The dielectric strength of transformer oil should be (A) 100 V.        (B) 5 KV. (C) 30 KV.        (D) 132 KV. Ans: The dielectric strength of transformer oil mu

Theory of searles magnetometer, theory of searles magnetometer for do the e...

theory of searles magnetometer for do the experiments

Moment of inertia, A non-uniform rod AB has a mass M and length 2l.The mass...

A non-uniform rod AB has a mass M and length 2l.The mass per unit lengthof the rod is mx at a point of the rod distant x from A. find the moment of inertia of this rod about an axi

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