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

How much energy does the atom lose, An electron in a hydrogen atom makes a ...

An electron in a hydrogen atom makes a transition from E 3 to E 1 . How much energy does the atom lose?

Which series describes electron transition for hydrogen atom, For the hydro...

For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the: a)  Lyman series b)  Balmer series

Fringes in youngs double slit experiment, How does the distance between fri...

How does the distance between fringes in Young's double slit experiment change. a) If the colour of the light is changed from red to blue? b) If the slit separation is incre

Define polarization of ideal gas?, Define Polarization of Ideal Gas? Ev...

Define Polarization of Ideal Gas? Evaluate the electric polarization P of an ideal gas consisting of molecules having a constant electric dipole moment P in a homogeneous exter

What are the limitations of transmission electron microscope, What are the ...

What are the limitations of transmission electron microscope? Limitations of transmission electron microscope: a. In TEM, the materials need extensive sample preparation; we

Show the definition for power, Question: What all are able to the power...

Question: What all are able to the power P possibly represent in the expression P = IV where I is current and V is voltage? Answer: The small definition for power is th

Making a simple refracting telescope, Making a simple refracting telescope ...

Making a simple refracting telescope  To make a simple telescope, two cardboard tubes will be needed, one fitting inside the other.  It is not possible to make a satisfactory t

Electric charge, What is electric field and formula for electric field is?

What is electric field and formula for electric field is?

Describe the construction and working of acousting grating, Describe the co...

Describe the construction and working of acousting grating. Construction and Working of Acousting Grating: The liquid is acquired into a glass cell. The Piezo-electric cryst

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