Author Question: That light can undergo interference is evidence that it: a. has a phase of 180. c. behaves like a ... (Read 92 times)

kamilo84 · **on:** Jul 28, 2018

That light can undergo interference is evidence that it:
a. has a phase of 180.
c. behaves like a wave.
b. has electric properties.
d. is made of corpuscles.

Question 2

A storeroom has a volume of 30 m3 and is filled with air of an average molecular mass of 29 u. What is the mass of the air in the room at a pressure of 1.0 atm and temperature of 22C? R = 0.082 L atm/mol K
a. 36 kg
c. 72 kg
b. 1240 kg
d. 700 kg