Home
Class 12
PHYSICS
K.E. of photo electron is E when inciden...

K.E. of photo electron is E when incident frequency is `V_1`. It is 2E when incident frequency is `V_2`. The relation between the frequencies is

A

`V_1=V_1`

B

`V_2gt2V_1`

C

`V_2lt2V_1`

D

`V_2=2V_1`.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Calculate the velocity of the photoelectrons emitted when a light of frequency 3xx 10^(12) Hz is incident on a metal surface of threshold frequency equal to 2xx10^(12) Hz.

When light of frequency 6 xx 10^(14) Hz is incident on a photosensitive metal, the kinetic energy of the photoelectron ejected is 2e V. Calculate the kinetic energy of the photoelectron in eV when light to frequency 5 xx 10^(14) Hz is incident on the same metal. Given Planck's constant, h = 6.625 xx 10^(-34) Js , 1 eV = 1.6 xx 10^(-19) .

According to Einstein's photoelectric equation the graph of K.E. of the photoelectron emitted from the metal versus the frequency of the incident radiation gives a straight line graph whose slope

Photons of energy 4 eV are incident on a metal. Maximum velocity of photo electrons emitted is v . When energy of incident radiations is decreased by 50%, velocity is halved, Work function of the metal is

X-rays fall on a photosensitive surface to cause photoelectric emission. Assuming that the work function of the surface can be neglected, find the relation between the de-Broglie wavelength ( lambda ) of the electrons emitted to the energy ( E_(v) ) of the incident photons. Draw the nature of the graph for lambda as a function of E_(v) .

Microwaves are e.m. wave with frequency in the range of