When a polaroid is rotated, the intensity of light does not vary. The incident light might be:

completely polarised

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partially plane Polaroid

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unpolarised

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none of the above

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Solution

The correct option is C unpolarised
$I = I_{0} c o s^{2} θ$ , if incident light is polarized then transmitted light through the polaroid has variable intensity.

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Similar questions

(a) What is linearly polarised light. Describe briefly using a diagram how sunlight is polarised.
(b) Unpolarised light is incident on a polaroid. How would the intensity of transmitted light change when the polaroid is rotated?

Q. Two polaroids are crossed. If now one of them is rotated through

30^{0}

and unpolarised light of intensity

I_{0}

is incident on the first polaroid,then the intensity of transmitted light will be

Q. Discuss the intensity of transmitted light when a Polaroid sheet is rotated between two crossed Polaroid?.

Q. Unpolarized light of intensity

I_{0}

is incident on a set of

3

polaroids as shown. The pass axis of each polaroid is perpendicular to direction of propagation. One of the polaroid is rotated about the common direction of propagation of light.

Q. Find an expression for intensity of transmitted light when a polaroid sheet is rotated between two crossed polaroids. In which position of the polaroid sheet will the transmitted intensity be maximum?

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When a polaroid is rotated, the intensity of light does not vary. The incident light might be:

The correct option is C unpolarisedI=I0 cos2 θ, if incident light is polarized then transmitted light through the polaroid has variable intensity.

The correct option is C unpolarised
$I = I_{0} c o s^{2} θ$ , if incident light is polarized then transmitted light through the polaroid has variable intensity.