MDCAT Physics MCQ #2546

MDCAT Physics MCQ #2546

1. Question 1

   Q1. The maximum kinetic energy of the photoelectrons emitted from a metal surface is

   • A) Directly proportional to the frequency of the incident light
   • B) Directly proportional to the intensity of the incident light
   • C) Inversely proportional to the work function of the metal
   • D) Independent of the frequency of the incident light

   Answer: Directly proportional to the frequency of the incident light

   Explanation: K_max = hf - φ; it's directly related to frequency, not intensity, and φ is the work function.