Advertisement Remove all ads

If the critical angle of a medium is sin-1(3/5), find the polarising angle. - Physics

If the critical angle of a medium is sin-1(3/5), find the polarising angle.

Advertisement Remove all ads

Solution

Given : 

The critical angle is given as

sinθc = 1/n

`therefore theta_c=sin^-1(1/n)`  ...(1)

It is given that

`theta_c=sin^-1(3/5)`

`therefore sin^-1(1/n)=sin^-1(3/5)` ...........form (1)

`therefore 1/n=3/5`

`therefore n=5/3`

Now, the polarising angle is given as

`theta_p=tan^-1 n`

`theta_p=tan^(-1)(5/3)`

`theta_p=tan^(-1)(1.667)`

`theta_p=59^@2'`

the polarising angle is `59^@2'`

Concept: Polarisation
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×