The K.E. of photo electron ejected from ...

The K.E. of photo electron ejected from a metal surface by light of wave length `2000A^(@)` range from zero to `3.2xx10^(-19)J` . The stopping potential will be equal to

3.2 V

6.4V

1.6V

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

DUAL NATURE OF RADIATION AND MATTER
AAKASH SERIES|Exercise PRACTICE EXERCISEX|44 Videos
DUAL NATURE OF RADIATION AND MATTER
AAKASH SERIES|Exercise EXERCISE-I ASSERTION AND REASON|4 Videos
CURRENT ELECTRICITY
AAKASH SERIES|Exercise EXERCISE - III|73 Videos
ELECTRIC CHARGES AND FIELDS
AAKASH SERIES|Exercise Practice Exercise|57 Videos

Similar Questions

Explore conceptually related problems

All electrons ejected from a metal surface by the incident light of wavelength 200 nm can be stopped before travelling 1 m in the direction of uniform electric field of 4NC^(-1) . The work function of the metal surface is

In an experiment on photoelectric emission from a metallic surface ,wavelength of incident light 2xx10^(-7) m and stopping potential is 2.5V .The threshold frequency of the metal (in Hz) approximately (Charge of electrons e=1.6xx10^(-19) C, Planck's constant , h=6.6xx10^(-34)J-s)

The threshold frequency for photo electric effect for a metal surface is found to be 4.8xx10^(16) Hz. The stopping potential required when the metal is irradiated by radiation of frequency 5.6xx10^(16) Hz is (taking h=6.6xx10^(-34)Js and c=1.6xx10^(-19)C )

What P.D. must be applied to stop the fastest photo electron emitted by a nickel surface when illuminated by ultraviolet light of wave length 2000^(@)A . The work function of nickel is 5 eV

All electrons ejected from a metallic surface by incident light of wavelength 400 nm travelled 1 m in the direction of uniform electric field of 2 NC^(-1) and came to rest. The work function of the surface is

The work function of potassium is 2.0 eV. When it is illuminated by light of wavelength 3300A^(@) photo electrons are emitted. The stopping potential of photo electrons is [Plank’s constant h=6.6xx10^(-34)Js,1eV=1.6xx10^(-19)J,C=3xx10^(8)ms^(-1) ]

A radiation of wave length 3000 Å is required to remove an electron from a metal atom. If a radiation of wave length 2000Å is allowed to incident on the metal surface, the kinetic energy of the emitted electron in k/J mole is

Blue light can eject photo electron from a photo sensitive surface while orange light cannot. Then

The work function of the nickel is 5 eV. When a light of wavelength 2000 Å falls on it ,it emits photoelectrons in the circuit .Then, the potential difference necessary to stop the faster electrons emitted is (Given , h=6.67xx10^(-34)J-s)

The maximum wavelength of a beam of light can be used to produce photo electric effect on a metal is 250 nm. The energy of the electrons in Joule emitted from the surface of the metal when a beam of light of wavelength 200 nm is used [h=6.62xx10^(-34)Js,C=3xx10^(8)ms^(-1)]

AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE=II

For a certain metal the threshold frequency is v(0). If light of frequ...
Text Solution
|
In a photoelectric cell, current stops when a negative potential of 0....
Text Solution
|
The K.E. of photo electron ejected from a metal surface by light of wa...
Text Solution
|
The work function of potassium is 2.0 eV. When it is illuminated by li...
Text Solution
|
Photo electric emission is observed from a metallic surface for freque...
Text Solution
|
When radiation of the wavelength lamdais incident on a metallic surfac...
Text Solution
|
K(1) and K(2) are the maximum kinetic energies of the photo electrons ...
Text Solution
|
Light of frequency 1.5 times the threshold frequency is incident on a ...
Text Solution
|
The maximum wavelength of a beam of light can be used to produce photo...
Text Solution
|
The work function of a material is 5.3 eV and the stopping potential f...
Text Solution
|
The energy flux of sunlight reaching the surface of the earth is 1.388...
Text Solution
|
The threshold frequency for a certain metal is v(0). When a certain ra...
Text Solution
|
The work function of a certain metal is 3.31xx10^-(-19) jthen, the max...
Text Solution
|
A photon of energy .E. ejects a photoelectron from a metal surface who...
Text Solution
|
The surface of a metal is illuminated with the ight of 400nm. The kine...
Text Solution
|
The ratio of velocities of a proton and an alpha particle is 4 : 1. Th...
Text Solution
|
Which of the following figures represents the variation of particle mo...
Text Solution
|
The wavelength of an electron of energy 100 eV will be
Text Solution
|
If the kinetic energy of a particle is increased four times, then the ...
Text Solution
|
A particle is projected horizontally with a velocity 10m/s. What will ...
Text Solution
|