Photoelectric effect can be caused by

Options :
  1. visible light but not by X rays
  2. Gamma rays but not by X - rays
  3. ultraviolet light only
  4. visible light, ultraviolet rays, X- rays and gamma rays also
Answer and Explanation :-

Answer: Option 4


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That what I need to survive is not Gale's fire, kindled with rage and hatred. I have plenty of fire myself. What I need is the dandelion in the spring. The bright yellow that means rebirth instead of destruction. The promise that life can go on, no matter how bad our losses. That it can be good again. And only Peeta can give me that.
-Suzanne Collins Mockingjay