Author Question: What is the momentum of a photon of light that has a wavelength of 480 nm? A) 1.1 10-27 kgm/s ... (Read 82 times)

fahad · **on:** Jul 29, 2018

What is the momentum of a photon of light that has a wavelength of 480 nm?

A) 1.1 10-27 kgm/s
B) 2.2 10-27 kgm/s
C) 1.8 10-27 kgm/s
D) 1.4 10-27 kgm/s
E) 2.0 10-27 kgm/s

Question 2

Which one of the following is the correct statement regarding the resistance?

A) The resistance of a conductor decreases with temperature.
B) The resistance of a semiconductor increases with temperature.
C) The resistance of a wire is directly proportional to the length of the wire.
D) All of the above statements are correct.
E) None of the above statements is correct.