Author Question: Unpolarized light is passed through polarizer 1 . The light then goes though polarizer 2 with its ... (Read 71 times)

dbose · **on:** Jul 28, 2018

Unpolarized light is passed through polarizer 1 . The light then goes though polarizer 2 with its plane of polarization at 30.0 to that of polarizer 1 . Polarizer 3 is placed after polarizer 2 . Polarizer 3 has its plane of polarization at 30.0 to the plane of polarization of polarizer 2 and at 60.0 to that of polarizer 1 . What fraction of the intensity of the original light gets though the last polarizer?
a. 0.707
c. 0.281
b. 0.125
d. 0.553

Question 2

How many calories are equal to one BTU? (One calorie = 4.186 J, one BTU = 1054 J.)
a. 0.252
c. 252
b. 3.97
d. 397