Does the average distance that a neutron travels through ...

[abarnes]

Does the average distance that a neutron travels through fissionable material before escaping increase or decrease when two pieces of fissionable material are assembled into one piece?
 
  Does this assembly increase or decrease the probability of an explosion?
  A) The average distance increases while the probability of an explosion also increases.
  B) The average distance decreases while the probability of an explosion decreases.
  C) The average distance increases while the probability of an explosion decreases.
  D) The average distance decreases while the probability of an explosion increases.

Question 2

A pair of narrow slits that are 1.8 mm apart is illuminated by a monochromatic coherent light source. A fringe pattern is observed on a screen 4.8 m from the slits.
 
  If there are 5.0 bright fringes/cm on the screen, what is the wavelength of the monochromatic light?
  A) 550 nm
  B) 600 nm
  C) 650 nm
  D) 700 nm
  E) 750 nm

[dyrone]

Answer to Question 1

Answer: A

Answer to Question 2

E

[abarnes]

Excellent

[komodo7]

TYSM