MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

1900's Physics and Wave

Energy of pho...

Question

Energy of photoelectrons is independent of the _ of incident radiation.

A. Wavelength

B. Wavenumber

C. Frequency

D intensity

Open in App

Solution

D)intensity
Kinetic energy of Electrons doesn't depends on Intensity whereas it depends on frequency of photons,once the threshold or cut-off frequency is crossed electron jumps out of metal with certain Kinetic energy. Higher the frequency of photons higher is the Kinetic Energy.
Hence Kinetic Energy of Electrons is independent of Intensity of Light in Photoelectric effect!

Suggest Corrections

thumbs-up

15

Similar questions

Q. Assertion :Kinetic energy of photoelectrons increases with increase in the frequency of incident radiation. Reason: The number of photoelectrons ejected increases with increase in intensity of incident radiation.

Q. Explain giving reasons for the following :
(a) Photoelectric current in a photocell increases with the increase in the intensity of the incident radiation.
(b) The stopping potential

(V_{0})

varies linearly with the frequency (

ν

) of the incident radiation for a given photosensitive surface with the slope remaining the same for different surfaces.
(c) Maximum kinetic energy of the photoelectrons is independent of the intensity of incident radiation.

Q. If intensity of radiation incident on a photocell be increased four times keeping frequency constant, then number of photoelectrons and energy of photoelectrons emitted become

Q. Kinetic energy of photoelectrons is independence ______ of incident radiation

Q. If the maximum kinetic energy of the photoelectrons is

E

when a radiation of frequency

ν

is incident on a photosensitive metal, then the maximum kinetic energy of the photoelectrons when the frequency of the incident radiation is doubled is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Wave Nature of Light

CHEMISTRY

Watch in App

explore_more_icon

Explore more

1900's Physics and Wave

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon