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Optical Activity

The device or...

Question

The device or arrangement to detect and check plane polarized light is called

A

Polarizer

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B

Optically active

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C

Polaroid

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D

Analyser

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Solution

The correct option is D
Analyser

The analyzer is the device or arrangement or the second Polaroid to detect whether the light is polarized or not.

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Q. Statement 1 : Butan-2-ol is optically active.

Statement 2 : The ability of rotation of plane polarized light either towards right or left is called optical activity.

Q. Plane polarized light is passed through a Polaroid. Now the Polaroid is given one complete rotation about the direction of light propagation. When viewed through another Polaroid (analyser), one of the following is observed:

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Q. Read the assertion and reason carefully to mark the correct option out of the options given below.
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Reason : A polaroid is capable of producing plane polarized beams of light.

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