Unpolarized light of intensity I passes through four Polaroid sheets whose polarizing angles are rotated 30 from each other so that the last sheet is aligned at 90 to the first. What is the intensity of the light emerging from the fourth sheet?
What will be an ideal response?
Question 2
The work done in moving a positive charge against an electric field does not depend on the path chosen in moving the charge in that field. Based on the statement, what kind of force field is the electrostatic field?
A) discrete
B) quantized
C) polarized
D) conservative
E) nonconservative
When horses lie down to sleep, others in the herd remain standing, awake or in a light doze, keeping
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