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Quiz 6
Section:
Phys 222, Fall 2014
Name:
Problem 1.(1 points.) Let’s assume that we’re in x-y-z coordinate system. The Elec~ Magnetic field B
~ of light are in x and z direction respectively.
tromagnetic wave E
Which direction would the light travel?
...........................................
Problem 2.(1.5 points.) A device that transforms mechanical energy into electrical
energy is called a
A) galvanometer
B) generator
C) motor
D) inductor
E) transformer
Problem 3.(1.5 points.) Light of which color has the longest wavelength?
A) Red
B) Blue
C) Green
D) Violet
E) Yellow
Problem 4.(1 points.) Intensity of a light wave is proportional to
A)
1
r2
B)
1
r
C) some constant
D) r
E) r2
Extra Credit.(0.5 points.) You’re asked to plot ‘A vs B’. A goes to ...........................
axis, and B goes to ........................ axis.