A metal surface ejects electrons when hit by green but none when hit by yellow light. The…

Physics · Class 12 · CBSEDual Nature of Radiation & Matter

A metal surface ejects electrons when hit by green but none when hit by yellow light. The electrons will be ejected when the surface is hit by

  1. blue light
  2. heat rays
  3. infrared light
  4. red light

Answer

(A) blue light

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