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 unit of capacity, Unit of Capacity: The unit of capacity of a c...

Unit of Capacity: The unit of capacity of a capacitor is known as farad (f). It is given by a relation. q = cv.

Draw a free-body diagram for a goldfish, Draw a free-body diagram for a gol...

Draw a free-body diagram for a goldfish that is motionless in the middle of a fish bowl. Recognize the forces acting on the fish. Show the direction of the net force on the f

Electric potential, why raise in ppotential is taken as positive

why raise in ppotential is taken as positive

Find magnitude of sum of two force, Two forces have magnitudes of 11 newton...

Two forces have magnitudes of 11 newtons and 5 newtons. The magnitude of their sum could NOT be equal to which of the following values? a) 16 newtons b) 5 newtons b)

Grid resistor, For higher current rating application, resistance wires with...

For higher current rating application, resistance wires with extremely large cross sections are required. The necessary large cross sections are produced in the form of resistance

Merit of a scanning electron microscope, Q. Give one merit of a scanning el...

Q. Give one merit of a scanning electron microscope over a transmission electron microscope? Answer:- The SEM has turn into more popular than the TEM as it can produce ima

Heat energy, how heat energy is liberated during respiration?

how heat energy is liberated during respiration?

Evaluate frequency to shatter the glass, Evaluate frequency to shatter the ...

Evaluate frequency to shatter the glass with a resonant vibration? Standing-wave vibrations are set up in a crystal goblet with four nodes and four antinodes equally spaced arou

Inductance, Inductance is the circuit parameter to describe an inductor. It...

Inductance is the circuit parameter to describe an inductor. It is an effect which results from the magnetic field that forms around a current carrying conductor. Inductance is sym

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