Author Question: You want to confine an electron in a box (an infinite well) so that its ground state energy is 5.0 ... (Read 88 times)

joblessjake · **on:** Jul 29, 2018

You want to confine an electron in a box (an infinite well) so that its ground state energy is 5.0 10-18 J. What should be the length of the box? (h = 6.626 10-34 J s, mel = 9.11 10-31 kg)

A) 0.15 nm B) 0.18 nm C) 0.22 nm D) 0.11 nm

Question 2

Gamma rays are photons with very high energy. What is the wavelength of a gamma-ray photon with energy 7.7 10-13 J? (c = 3.0 108 m/s, h = 6.626 10-34 J s)

A) 3.1 10-13 m B) 3.5 10-13 m C) 3.9 10-13 m D) 2.6 10-13 m