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

Student, A mirror cleaned with an alcohol solution is slightly colder right...

A mirror cleaned with an alcohol solution is slightly colder right after it is cleaned. Why?

Doppler effect, Draw a picture of a moving source and the waves surrounding...

Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source comp

P-type semi conductor, What are the minority and majority charge carriers i...

What are the minority and majority charge carriers in a p-type semi conductor? How is a battery connected to a junction diode in a) forward and b) reverse-bias?

Relation among electric force and electric field, In an electric field   a ...

In an electric field   a charge (Q) experiences a force F = QE. If charge is positive then force is directed in the direction of field whereas if charge is negative force acts on i

Define term coherence as the characteristics of laser, Define term coherenc...

Define term coherence as the characteristics of laser. Coherence: The light from a laser is called be highly coherent that implies the waves of laser light are in similar

How fast must a spacecraft travel relative to the earth, How fast must a sp...

How fast must a spacecraft travel relative to the earth for each day on the spacecraft to correspond to 2d on the earth? By standard equation, for the time t to the earth to co

Determine the voltage across the capacitor, In the circuit shown in Figure,...

In the circuit shown in Figure, with the switch in position 1, the capacitor is uncharged. If he switch is moved to position 2 at time t =0s, measure (i) The initial curren

Example of ohm law, Example of Ohm Law Now that we know how to draw a c...

Example of Ohm Law Now that we know how to draw a circuit, let's figure out what is happening in a simple one resistor, one battery (voltage source) circuit. Example 1 - H

Calculate the value of the unknown resistance, In a Wheatstone bridge ABCD,...

In a Wheatstone bridge ABCD, a galvanometer is connected between A and C, and a battery among B and D. A resistor of unknown value is connected among A and B. When the bridg

What is the kinemmetic chain and kinematic pair, KINEMATIC CHAIN : Refers t...

KINEMATIC CHAIN : Refers to an assembly of rigid bodies connected by joints that is the mathematical model for a mechanical system. As in the familiar use of the word chain, the ri

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