Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A point source emits unpolarized light uniformly in all directions. At two points
and
, the ratio
of the intensities of light is 2 . If a set of two polaroids having
angle between their pass-axes is placed just before point
, then the new value of
will be .
Text Solution
Verified by ExpertsThe correct answer is:
8
(8)
Sol. 
Where
: distance from point source.

………(i)
Also, due to polaroids:

…………..(ii)
Ratio becomes 4 times.

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