In a photocell bichromatic light of wavelength 
and 
are incident on cathode whose work function is 4.8 
. If a uniform magnetic field of 
tesla exists parallel to the plate, the radius (in 
) of the path described by the photoelectron is (mass of electron 
)
Text Solution
Verified by Experts5
(5) Energy of photons corresponding to light of wavelength
is 
.
and that corresponding to 
is
As 
and 
. Photoclectric emission is possible with 
. Maximum kinetic energy of cmitted photoelectrons 
. Photoelectrons experience magnetic force and move along a circular path of radius
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