Given below are two statements
Statement I : Out of microwaves, infrared rays and ultraviolet rays, ultraviolet rays are the most effective for the emission of electrons from a metallic surface.
Statement II : Above the threshold frequency, the maximum kinetic energy of photoelectrons is inversely proportional to the frequency of the incident light.
In the light of above statements, choose the correct answer from the options given below.
Text Solution
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Among all microwaves, infrared rays and UV rays, UV rays are most energetic and effective rays, therefore emission of electrons takes place from a metallic surface. Maximum kinetic energy of photoelectron is given by, 
Where, 
is the work function and 
is the frequency of incident light.
Thus, statement I is true but statement II is false.
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