Please wait...
Contact Us
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry



Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

9372462318 / 9987178554

Mon to Sat - 10 AM to 7 PM

Solve question no.  177

Asked by ay91555 12th July 2017, 6:03 PM
Answered by Expert
The following steps need to be followed in order to solve this query:
Step 1) Unpolarised light is incident on P1. So, after coming out its intensity is reduced by half. So, I1 = I0/2.
Step 2) Note that the angle between first and second polaroid is 90º and the third Polaroid is introduced between the two. So, take its angle with the first Polaroid and find its angle with the second Polaroid. You will get 45º.
Step 3) Now, find the intensity of light between the first and the third Polaroid. Use the relation I3 = Icos245. You should get I3 = I0/2 × 1/2 = I0/4
Step 4) Now, use this value of I3 to find the final intensity from the second polaroid. Use I2 = I3 cos245. You should get I2 = I0/4 × 1/2 = I0/8.
Answered by Expert 13th July 2017, 5:30 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Free related questions

Chat with us on WhatsApp