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 photoelectron if

`v lt W//h`

`v gt W//h`

`v ge W//h`

`v le W//h`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

DUAL NATURE OF RADIATION AND MATTER
NARAYNA|Exercise EXERCISE - 1 (C.W)|40 Videos
DUAL NATURE OF RADIATION AND MATTER
NARAYNA|Exercise EXERCISE - 1 (H.W)|24 Videos
DUAL NATURE OF RADIATION AND MATTER
NARAYNA|Exercise EVALUTATE YOURSELF - 4|5 Videos
CURRENT ELECTRICITY
NARAYNA|Exercise Level 6|43 Videos
DUAL NATURE
NARAYNA|Exercise LEVEL-II (H.W)|17 Videos

Similar Questions

Explore conceptually related problems

The work function of a metal is 4 eV. What should be the wavelength of the incident radiation for the emission of photoelectrons of zero velocity ?

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.

An increase in the frequency of the incident light.............the velocity with which photoelectron is ejected.

The work function of a substance is "3.0eV" .The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately:

The threshold frequency for certain metal is v_0 . When light of frequency 2v_0 is incident on it, the maximum velocity of photoelectrons is 4xx10^(6) ms^(-1) . If the frequency of incident radiation is increaed to 5v_0 , then the maximum velocity of photoelectrons will be

Threshold frequency for a certain metal is v_0 . When light of frequency 2v_0 is incident on it, the maximum velocity of photoelectrons is 4xx10^8 cm s^-1 . If frequency of incident radiation is increased to 5v_0 , then the maximum velocity of photoelectrons, in cm s^-1 , will be

The photoelectric threshold frequency of a metal is v_0. When ligth of frequency 3v_0 is incident on the metal, the maximum kinetic energy of emitted photoelectrons will be

NARAYNA-DUAL NATURE OF RADIATION AND MATTER-C. U. Q

When the amplitude of the light wave incident on a photometal sheet is...
Text Solution
|
Which of the following is dependent on the intensity of incident radia...
Text Solution
|
If the work function of a metal is 'phi' and the frequency of the inci...
Text Solution
|
When ultraviolet radiation is incident on a surface , no photoelectron...
Text Solution
|
The function of photoelectric cell is
Text Solution
|
Photo electric effect can be explained only by assuming that light
Text Solution
|
Though quantum theory of light can explain a number of phenomena obser...
Text Solution
|
When an X-ray photon collides with an electrons and bounces off, its n...
Text Solution
|
A point source of light is used in a photoelectric effect. If the sour...
Text Solution
|
De- Broglie wavelenght depends on
Text Solution
|
The de broglie wavelength associated with a particle of mass m, moving...
Text Solution
|
The rest mass of a photon of wavelength lambda is
Text Solution
|
The mass of a photon in motion is given its frequency = x)
Text Solution
|
Which of the following particles - neutron, proton, electron and deute...
Text Solution
|
The momentum of a proton is p. the corresponding wavelength is
Text Solution
|
A wave is associated with matter when it is
Text Solution
|
An electron of mass 9.1xx10^(-31) kg and charge 1.6xx10^(-19) C is acc...
Text Solution
|
The de Broglie wavelength of a molecules of thermal energy KT ( K is B...
Text Solution
|
The wavelength of a proton and a photon are same. Then
Text Solution
|
If the value Plank's constant is more than its present value. Then de ...
Text Solution
|