In a photoelectric experiment ultraviolet light of wavelength 280nm is used with lithium cathode having work function 
. If the wavelength of incident light is switched to 400nm, find out the change in the stopping potential. 
Text Solution
Verified by ExpertsThe correct answer is:
A
…(i)
….(ii)
ΔV = 
= 1.93 − 0.6 = 1.33 V
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