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Question1

An unpolarized beam of light is sent into a stack of four polarizing sheets, oriented so that the angle between the polarizing directions of adjacent sheets is 48o. What fraction of incident intensity is transmitted by the system?

Question2

Iron has a mass of 7.87 g per cubic centimeter of volume, and the mass of an iron atom is 9.27 × 10-26 kg. If you make simpler and treat each atom as a cube,

(a) What is average volume (in cubic meters) required for each iron atom and

(b) What is distance (in meters) between the centers of adjacent atoms?

Question3

A rope, assumed massless, is stretched horizontally between two supports that are 3.44 m apart. When an object of weight 3160 N is hung at the center of the rope, rope is observed to sag by 35 cm. work out the tension in the rope.

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Category:- Physics
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