Monochromatic light hits a piece of glass. Assuming the frequency ...

[LaDunn]

Monochromatic light hits a piece of glass. Assuming the frequency remains constant, what happens to the wavelength in the glass as the index of refraction decreases?
 a. decreases
  c. increases
  b. approaches 3  108 m
  d. remains constant

Question 2

100 g of liquid nitrogen at its boiling point of 77 K is stirred into a beaker containing 600 g of 15C water. If the nitrogen leaves the solution as soon as it turns to gas, how much water freezes? The heat of vaporization of nitrogen is 48 cal/g and that of water is 80 cal/g.
 a. none
  c. 68 g
  b. 29 g
  d. 109 g

[livaneabi]

Answer to Question 1

C

Answer to Question 2

A

[LaDunn]

Excellent

[bbburns21]

Gracias!