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

Explain electromotive force, Electromotive Force: (emf) A force which d...

Electromotive Force: (emf) A force which derives the electric current is known as electromotive force. OR The energy needed to drive the charge around the circuit is know

Filtering and image masking, Regarding filtering, image masking & convoluti...

Regarding filtering, image masking & convolution. Assume we have the following Infra-Red image:   What filter would you use to remove the impulsive noise in the first row o

Spinning charges and an inhomogeneous magnetic field 2, Spinning Charges an...

Spinning Charges and an Inhomogeneous Magnetic Field 2 A spinning charged object passes by an array of 3 magnets every generating an inhomogeneous magnetic field. This animati

Coanda effect, Coanda effect The effect which indicates that a fluid t...

Coanda effect The effect which indicates that a fluid tends to flow along a surface, instead of flow through free space.

Nucleus, Two stable isotopes of lithium and have respective abundances of 7...

Two stable isotopes of lithium and have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.

Subset [tabular method], 1.A=the set of whole numbers less tan 4 ? 2.B=the ...

1.A=the set of whole numbers less tan 4 ? 2.B=the set of prime numbers less than 19 ? 3.C=the set of first three days of week?

Electric potential, why raise in ppotential is taken as positive

why raise in ppotential is taken as positive

Bernoullis theorem, what is the theory behind bernoullies theorem?

what is the theory behind bernoullies theorem?

Digital image, What is the raw file size for an image of 80 rows and 100 co...

What is the raw file size for an image of 80 rows and 100 columns, with pixels on 14 bits and with an extra row for the header? The minimum and maximum values observed in a  low

Phase difference between voltage and current in this circuit, The power fac...

The power factor of an a.c. circuit is 0.5. What will be the phase difference among voltage and current in this circuit?

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