When the energy of the incident radiation is increased by `20 %` , kinetic energy of the photoelectrons emitted from a metal surface increased from `0.5 eV to 0.8 eV`. The work function of the metal is
A
0.65 eV
B
1.0 eV
C
1.3 eV
D
1.5 eV
Text Solution
Verified by Experts
The correct Answer is:
B
Topper's Solved these Questions
ALTERNATING CURRENT
AAKASH INSTITUTE|Exercise Try Yourself|15 Videos
ALTERNATING CURRENT
AAKASH INSTITUTE|Exercise Assignment (Section - A) ( Objective Type Questions ( One option is correct))|34 Videos
When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is:
On a photosensitive material, when frequency of incident radiation is increased by 30% kinetic energy of emitted photoelectrons increases from 0.4 eV to 0.9 eV . The work function of the surface is
The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6eV fall on it is 4eV. The stopping potential is:
A metal having a threshold frequency of v_0//2 is illuminated by the incident radiation of frequency 2v_0 . If the energy of the incident photon is increased by 40 percent , then what will be the percentage change in the kinetic energy of the photoelectrons emitted from the surface of the metal ? Note that increase in energy of photon is done by suitably changing frequency of radiation.
The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV . The stopping potential , in volt is
The surface of a metal is illuminted with the light of 400 nm The kinetic energy of the ejection photoelectron was found to be 1.68 eV The work function of the metal is :
Calculate the kinetic energy of a photoelectron (in eV) emitted on shining light of wavelength 6.2 xx 10^(-6)m on a metal surface. The work function of the metal is 0.1 eV ?
The kinetic energy of the most energetic photoelectrons emitted from a metal surface is doubled when the wavelength of the incident radiation is reduced from lamda_1 " to " lamda_2 The work function of the metal is
The energy of emitted photoelectrons from a metal is 0.9ev , The work function of the metal is 2.2eV . Then the energy of the incident photon is
AAKASH INSTITUTE-ALTERNATING CURRENT -Assignment (Section-J) (Aakash Chailengers Questions)
