A Polaroid is placed at $45^{0}$ to an incoming light of intensity $I_{0}$ . Now the intensity of light passing through Polaroid after polarization would be

I_{0}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{I_{0}}{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{I_{o}}{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Zero

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $\frac{I_{0}}{2}$
Given,
$θ = 45^{0}$
By malus law,
$I = I_{0} c o s^{2} θ$
$I = I_{0} c o s^{2} 45^{0} = I_{0} (\frac{1}{\sqrt{2}})^{2}$
$I = \frac{I_{0}}{2}$
The correct option is B.

Suggest Corrections

Similar questions

A polaroid is placed at 45^o to an incoming light of intensity I₀. Now the intensity of light passing through polaroid after polarisation would be

A polaroid is placed at 45° to an incoming light of intensity I_o. Now the intensity of light passing through the poloroid after polarisation would be:

Q. Two polaroids

A

and

B

are placed with their polaroid axes

30^{\circ}

to each other as shown in the figure. A plane polarised light passes through the polaroid

A

and after passing through it, intensity of light becomes

I_{0}

. What is the intensity of finally transmitted light after passing through the polaroid

B

Q. An unpolarised beam of intensity

I_{0}

falls on a polaroid at an angle of

45^{0}

. The intensity of the emergent light is

Join BYJU'S Learning Program

A Polaroid is placed at 450 to an incoming light of intensity I0. Now the intensity of light passing through Polaroid after polarization would be

The correct option is B I02Given,θ=450By malus law,I=I0cos2θI=I0cos2450=I0(1√2)2I=I02The correct option is B.

A Polaroid is placed at $45^{0}$ to an incoming light of intensity $I_{0}$ . Now the intensity of light passing through Polaroid after polarization would be

The correct option is B $\frac{I_{0}}{2}$
Given,
$θ = 45^{0}$
By malus law,
$I = I_{0} c o s^{2} θ$
$I = I_{0} c o s^{2} 45^{0} = I_{0} (\frac{1}{\sqrt{2}})^{2}$
$I = \frac{I_{0}}{2}$
The correct option is B.