The photo electrons emitted from a metal surface are such taht

Options :
  1. they are all at rest
  2. they all have same energy
  3. their energies varies from zero to infinite
  4. their energy varies from zero to a finite maximum value
Answer and Explanation :-

Answer: Option 4

Explanation:

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Cieszy mie ten rym: "Polak madr po szkodzie" Lecz jesli prawda i z tego nas zbodzie,Nowa przypowiesc Polak sobie kupi,Ze i przed szkoda, i po szkodzie glupi.
-Jan Kochanowski