Home
Class 12
PHYSICS
If the work function of a metal is 'phi'...

If the work function of a metal is `'phi'` and the frequency of the incident light is 'v', there is no emission of photo electron for

A

`v lt (phi)/(h)`

B

`v = (phi)/(h)`

C

`v gt (phi)/(h)`

D

`v gt = lt (phi)/(h) `

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|15 Videos

  • ALTERNATING CURRENT

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - A) ( Objective Type Questions ( One option is correct))|40 Videos

  • ATOMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION J (Aakash Challengers )|5 Videos

Similar Questions

Explore conceptually related problems

If the work function of a metal is 'phi' and the frequency of the incident light is 'v' , there is no emission of photoelectron if

The work function of metal is W and lamda is the wavelength of the incident radiation. There is no emission of photoelecrons when

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.

The following figure shows a graph for the stopping potential as a function of the frequency of incident light illuminating a metal surface. Find the photoelectric work function for this surface.

Calculate the velocity of a photo-electron if the work function of the target material is 1.24eV and the wavelength of incident light is 4.36xx10^(-7) m. What retarding potential is necessary to stop the emission of the electrons?

The work function of Cs is 2.14eV.Find (a) threshold frequency for Cs (b) Wavelength of incident light if the photo current is brought to zero by stopping potential of 0.6 V.

A graph regarding photoelectric effect is shown between the maximum kinetic energy of electrons and the frequency of the incident light. On the basis of data as shown in the graph, calculate (a) threshold frequency , (b) work- function, (c ) planck constant

Calculate the valocity of a photoelectron if the work function of the target material is 1.24eV and the wavelength of incident light is 4.36xx10^(-7) m. What retarding potentia is necessary to stop the emission of the electrons?

The work function of a metal is hv_0 . Light of frequency v falls on this metal. The photoelectric effect will take place only if

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :