Login
Remember
Register
Home
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Categories
Users
Ask a Question
Ask a Question
Photoelectrons are emitted with a maximum speed of `7×10^5m`/`s` from a surface when light of frequency `8×10^(14)Hz` is incident on it. Find the threshold frequency for this
0
votes
asked
Mar 20, 2022
in
12th Physics
by
varun
(
6.7k
points)
Photoelectrons are emitted with a maximum speed of `7×10^5m`/`s` from a surface when light of frequency `8×10^(14)Hz` is incident on it. Find the threshold frequency for this surface?
marks2
chapter12
#sub
Please
log in
or
register
to answer this question.
0
Answers
Categories
All categories
Maths
(8.6k)
Science
(14)
Physics
(3.4k)
11th Physics
(1.5k)
12th Physics
(1.9k)
Related questions
Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 × 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of
Obtain the expression for the maximum kinetic energy of the electrons emitted from a metal surface in terms of the frequency of the incident radiation and the threshold
The work function of caesium metal is 2.14 eV. When light of frequency 6 ×1014Hz is incident on the metal surface, photoemission of electrons occurs. What is the(i) maximum kinetic energy of the emitted electrons,(ii) Stopping potential,(iii) maximum speed of the emitted
An electromagnetic wave of wavelength λ is incident on a photosensitive surface of negligible work function. If the photoelectrons emitted form this surface have de-broglie wavelength `λ_1` . Prove that
By how much would the stopping potential for a given photosensitive surface goup if the frequency of the incident radiations were to be increased from `4×10^(15) Hz` to `8 × 10^(15) Hz? ` `(h=6.4xx10^(-3)4Js,