Surface of certain metal is first illuminated with light of wavelength 
and then, by light of wavelength 
. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of 2 . The work function of the metal (in eV ) is close to :
Text Solution
Verified by ExpertsThe correct answer is:
D
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Statement-I: When ultraviolet light is incident on a photocell, its stopping potential is and the …
If a source of power 4 kW produces photons/second, the radiation belongs to a part of the spectrum…
Energy required for the electron excitation in Li ++ from the first to the third Bohr orbit is :
After absorbing a slowly moving neutron of Mass (momentum ) a nucleus of mass breaks into two nu…
Hydrogen atom is excited from ground state to another state with principal quantum number equal to …
The anode voltage of a photocell is kept fixed. The wavelength λ of the light falling on the cathod…