IIT-JEE Exam

A beam of unpolarised light of intensity I0 is
passed through a polaroid A and then through
another polariod B which is oriented so that its
principal plane makes an angle of 45º relative to
that of A. The intensity of the emergent light is -

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IIT-JEE Other Question

The supply voltage to a room is 120 V. The
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(1) 13.3 V (2) 10.04 V
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