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

State zeroth law , When two objects A and B are in thermal equilibrium with...

When two objects A and B are in thermal equilibrium with a third object (C) independently, then they (i.e. A and B) are in thermal equilibrium equally i.e. Therefore, the t

Determine density of gold, Trying to make an interesting pattern, an artist...

Trying to make an interesting pattern, an artist slowly pours 1.00 cm 3 of liquid gold onto a large block of ice at 0.00°C. While being poured, the liquid gold is at its melt

Quantum physics, find the kinetic energy of a proton whose debroglie is 1fm...

find the kinetic energy of a proton whose debroglie is 1fm

Plot the waveform - signal of amplitude, 1. You are trying to observe a 500...

1. You are trying to observe a 500 Hz signal of amplitude 2 mV in the presence of an interfering 4.0 kHz signal also of amplitude 2mV. Use a MATLAB .m script to plot the waveform y

Determine the q-factor of damped oscillator, Determine the Q-factor of damp...

Determine the Q-factor of damped oscillator with resonant frequency 500Hz and damping coefficient 0.5 per second.

Show the amperes law, The integral in Ampere's Law is an integral. ...

The integral in Ampere's Law is an integral. Answer: The integral is an integral along (over) a closed path (curve).

Bernoullis equation, Bernoulli's equation In an irrotational fluid, to...

Bernoulli's equation In an irrotational fluid, total of the static pressure, the weight of the fluid per unit mass times the height, & half the density times the velocity squa

Earths rotation about its axis, The earth's rotation about its axis changes...

The earth's rotation about its axis changes measurably over time; You don't have to worry about the details; all you need to know is that our days are growing longer by about 2.3 m

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