You want to confine an electron in a box (an infinite well) so ...

[joblessjake]

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

[aliotak]

Answer to Question 1

D

Answer to Question 2

D

[joblessjake]

TYSM

[juliaf]

Gracias!