Work function of a metal is minimum ener...

Work function of a metal is minimum energy required to

free an electron from surface against coulomb's forces.

free a nucleon.

eject an electron electronic orbit.

ionize an atom.

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELECTRONS AND PHOTONS
TARGET PUBLICATION|Exercise Critical thinking|22 Videos
ELECTRONS AND PHOTONS
TARGET PUBLICATION|Exercise Competitive Thinking|78 Videos
COMMUNICATION SYSTEMS
TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
FORCE
TARGET PUBLICATION|Exercise Evaluation Test|16 Videos

Similar Questions

Explore conceptually related problems

Work function of metal is

The work function of a metal is

The work function of a metal

A when a photon of energy hv is incidnet on an electron in a metal of work function phi ( lt hv) , the electron will not necesserily come out of the metal . R : work function is the minimum energy required to liberate an electron out of a metal . So some electons may require more energy for their liberation .

A : Every metal has a definite work function , still all photoelectrons do not come out with the same energy it incident radiation is monochromatic . R : Work function is the minimum energy required for the electron in the highest level of conduction band to get out of the metal . Not all electrons in the metal belong to this level rather they occupy a continuous band of levels .

What is the work function of a metal if light of minimum frequency 8xx10^(13) Hz is required for emission of photo electrons?

The work function of a metal is 3.4 eV. If the frequency of incident radiation is increased to twice, then the work function of the metal becomes.

Work function of a metal is 2 eV. The maximum wavelength of photons required to emit electrons from its surface is

Assertion: Work function of a metal is 4 eV. The maximum wavelength of photons required to emit electrons from its surface is about 3100 Å. Reason: Work function, phi _0= hc//lambda _max

Assertion: Work function of a metal is 5 eV. The maximum wavelength of photons required to emit electrons from its surface is 2480 Å. Reason: Work function, phi_0=(hc)/lamda_max .

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Evaluation Test

Work function of a metal is minimum energy required to
Text Solution
|
Relation between the stopping potential V0 of a metal and the maximum ...
Text Solution
|
Radiation of wavelength 120 nm ejects photoelectrons from a plate whos...
Text Solution
|
A surface receives light of wavelength lambda1=450 nm, causing the eje...
Text Solution
|
Assertion: Photons can exist at rest. Reason: Rest mass m0=msqrt(((1...
Text Solution
|
When a monochromatic point source of light is at a distance of 0.2 m f...
Text Solution
|
Assertion: Work function of a metal is 4 eV. The maximum wavelength of...
Text Solution
|
Eye of an experimenter detects the green light (lambda =4000 Å) at 5xx...
Text Solution
|
Photon having wavelength lambda = 3.5xx10^(-7)m and lambda = 5.4xx10^(...
Text Solution
|
Illuminating a metal surface alternately with wavelengths lambda1 and ...
Text Solution
|
A proton when accelerated through a potential difference of V volt has...
Text Solution
|
The work function for the following metals is given Na: 2.75 eV, K:2.3...
Text Solution
|
Assertion: Work function of a metal is proportional to maximum wavelen...
Text Solution
|
The retarding potential for having zero photo - electron current
Text Solution
|
A proton and an alpha-particle are accelerated through same potential ...
Text Solution
|
Light of wavelength 3000 Å falls on a sensitive surface. If the surfac...
Text Solution
|
The work function for aluminium is 4.125 eV. The cut-off wavelength fo...
Text Solution
|
Two metallic plates P(collector) and Q (emitter) are separated by a di...
Text Solution
|
Lights of two different frequencies whose photons have energies 1 eV a...
Text Solution
|
When a metal surface is illuminated by a monochromatic light of wave-l...
Text Solution
|