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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 form the options given below
 

Option: 1

Statement I is false but statement II is true
 


Option: 2

Both Statement I and Statement II are true
 


Option: 3

Statement I is true but statement II is false
 


Option: 4

Both Statement I and Statement II are false

 


Answers (1)

best_answer

UV rays have maximum frequency hence are most effective for emission of electrons from the metallic surface.

KE_{max}=hf-hf_o

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