Author Question: If a surface has a work function of 1.5 eV and photons of energy 2.7 eV are shone on the surface, ... (Read 27 times)

imowrer · **on:** Jul 29, 2018

If a surface has a work function of 1.5 eV and photons of energy 2.7 eV are shone on the surface, what is a possible kinetic energy of the electrons emitted from the surface?

A)

3.0 eV
B)

2.0 eV
C)

4.0 eV
D)

1.0 eV
E)

No electrons are emitted.

Question 2

An element has an atomic mass number of 14 and atomic number 6. (a) How many protons does it have? (b) How many neutrons does it have?

What will be an ideal response?