A metal surface of work function 1.07 eV...

A metal surface of work function `1.07 eV` is irradiated with light of wavelength `332 nm`. The retarding potential required to stop the escape of photo - electrons is

4.81 V

3.74 V

2.66 V

1.07 V

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELECTRONS AND PHOTONS
TARGET PUBLICATION|Exercise Evaluation Test|19 Videos
ELECTRONS AND PHOTONS
TARGET PUBLICATION|Exercise Critical thinking|22 Videos
COMMUNICATION SYSTEMS
TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
ELECTROSTATICS
TARGET PUBLICATION|Exercise EXCERCISE|156 Videos

Similar Questions

Explore conceptually related problems

The work function of a metallic surface is 5.01 eV. The photoelectrons are emitted when light of wavelength 2000A falls on it. The potential difference applied to stop the fastes photoelectrons is [h=4.14xx10^(-15)eVs]

When a metal surface is illuminated by a monochromatic light of wave-length lambda , then the potential difference required to stop the ejection of electrons is 3V . When the same surface is illuminated by the light of wavelength 2lambda , then the potential difference required to stop the ejection of electrons is V . Then for photoelectric effect, the threshold wavelength for the metal surface will be

The work function of metal is 1 eV . Light of wavelength 3000 Å is incident on this metal surface . The velocity of emitted photo - electrons will be

An electron of work function 1.4 eV is emitted with a velocity 5 xx 10^6 m/s .The wavelength of the incident radiation is

In a photoelectric experiment for 4000 Å incident radiation, the potential difference to stop the ejection is 2 V . If the incident light is changed to 3000 Å , then the potential required to stop the ejection of electrons will be

When monochromatic light of wavelength lambda is incident on a metallic surface the stopping potential for photoelectric current is 3V_(0) when same surface is illuminated with light of waelength 2lambda the stopping potential is V_(0) The threshold wavelength for this surface when photoelectric effect takes place is

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Competitive Thinking

The momentum of a photon is 2 xx 10^(-16) gm - cm//sec. Its energy is
Text Solution
|
If the energy of a photon corresponding to a wavelength of 6000 Å is ...
Text Solution
|
If we express the energy of a photon in KeV and the wavelength in angs...
Text Solution
|
A metal surface of work function 1.07 eV is irradiated with light of w...
Text Solution
|
The work function of metal is 1 eV. Light of wavelength 3000 Å is inc...
Text Solution
|
Energy from the sun is recived on earth at the rate of 2 cal per cm^(2...
Text Solution
|
when a monochromatic point source of light is at a distance 0.2 m from...
Text Solution
|
When a metal surface is illuminated by light wavelengths 400 nm and 25...
Text Solution
|
The velocity of the most energetic electrons emitted from a metallic s...
Text Solution
|
A modern 200 W sodium street lamp emits yellow light of wavelength 0.6...
Text Solution
|
Ultraviolet light of wavelength 300nn and intensity 1.0Wm^-2 falls on ...
Text Solution
|
The number of photons falling per second on a completely darkened plat...
Text Solution
|
Photoelectric emission is observed from a metallic surface for frequen...
Text Solution
|
A photoelectric surface is illuminated successively by monochromatic l...
Text Solution
|
Two identical photo-cathodes receive light of frequencies f1 and f2. ...
Text Solution
|
A metal surface is illuminated by light of two different wavelengths 2...
Text Solution
|
A photon of energy E ejects a photoelectron from a metel surface whose...
Text Solution
|
Light of wavelength lambda(A) and lambda(B) falls on two identical met...
Text Solution
|
The energy of the electromagetic wave is of the order of 15 keV. To wh...
Text Solution
|
The photoelectric work function of a surface is 2.2 eV. The maximum ki...
Text Solution
|