The time taken by a photoelectron to com...

The time taken by a photoelectron to come out after photon strikes is approximately

`10^(-14)` s

`10^(-10)` s

`10^(-16)` s

`10^(-1)` s

Text Solution

Verified by Experts

The correct Answer is:

The time lag between the incident of photon and the emission of photoelectrons is `10^(-10)`s approximately.

Topper's Solved these Questions

DUAL NATURE OF RADIATION AND MATTER
FULL MARKS|Exercise ADDITIONAL QUESTIONS -(SHORT ANSWER QUESTIONS )|7 Videos
DUAL NATURE OF RADIATION AND MATTER
FULL MARKS|Exercise ADDITIONAL QUESTIONS -( LONG ANSWER QUESTIONS )|7 Videos
DUAL NATURE OF RADIATION AND MATTER
FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED -( NUMERICAL PROBLEMS)|15 Videos
CURRENT ELECTRICITY
FULL MARKS|Exercise Additional Questions Solved (Numerical Problems)|6 Videos
ELECTROSTATICS
FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( VII. NUMERICAL PROBLEMS )|5 Videos

Similar Questions

Explore conceptually related problems

The work funciton of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

The time taken by insulin to be cleared from circulation is

Answer the following questions: (d) Every metal has a definite work function. Why do all photoelectrons not come out with the same energy if incident radiation is monochromatic? Why is there an energy distribution of photoelectrons?

a. Every metal has a definite work function. Why all photoelectrons do not come out with the same energy of incident radiation in monochromatie ? Why there is an energy distribution of photoelectrons? b. The energy and momentum of an electron are related to the frequency and wave-length of the associated matter wave by the relations, E=h upsilon, p=(h)/(lambda) But while the value of lambda is physically significant, the value of upsilon (and therefore the value of the phase speed upsilon lambda has no physical significance. Why?

Do all the electrons that absorb a photon come out as photoelectrons ?

Iron emits K_alpha X-ray of energy 6.4 keV and Calcium emits K_alpha X-ray of energy 3.69 keV. Calculate the times taken by an iron K_a photon and a calcium K_a photon to cross through a distance of 3 km.

In an experiment on photoelectric effect, a photon is incident on an electron from one direction and the photoelectron is emitted almost in the opposite direction. Does this violate conservation of momentum ?

FULL MARKS-DUAL NATURE OF RADIATION AND MATTER-ADDITIONAL QUESTIONS -(MULTIPLE CHOICE QUESTIONS )

Electron volt (eV) is a unit of
Text Solution
|
Photon of frequency v has a momentum associated with it. If c is the v...
Text Solution
|
The time taken by a photoelectron to come out after photon strikes is ...
Text Solution
|
Cathode rays consist of
Text Solution
|
The momentum of photon whose frequency is f is
Text Solution
|
The energy of photon of wavelength lambda is
Text Solution
|
The ratio of the energy of a photon with lambda = 150 nm to that with ...
Text Solution
|
Photons of 5.5 eV energy fall on the surface of the metal emitting pho...
Text Solution
|
The wavelength of photon is proportional to (where upsilon = fequency)
Text Solution
|
What is the energy of a photon whose wavelength is 6840 Å ?
Text Solution
|
Momentum of photon of wavelength lambda is
Text Solution
|
The momentum of a photon of energy 1 MeV is kg m/s will be
Text Solution
|
If a proton and electron have the same de-Broglie wavelength, then
Text Solution
|
Photoelectric effect can be explained by
Text Solution
|
Which of the following waves can produce photoelectric effect ?
Text Solution
|
Which light when falls on a metal will emit photoelectons ?
Text Solution
|
In photoelectric effect, the KE of electrons emitted from the metal su...
Text Solution
|
In photoelectric effect, electrons are ejected from metals, if the inc...
Text Solution
|
Number of ejected photoelectrons increases with increases
Text Solution
|
By photoelectric effect, Einstein proved
Text Solution
|