Conceptual Question about Polarisation and Intensity/

[JohnGaltis]

Homework Statement

Consider a beam of unpolarised light incident onto air from a crown-glass with a refractive index of 1.52.

Given that the incident light intensity has a power of 10mW, find the minimum incident angle when the power of the refracted light becomes zero.

Homework Equations

I have no idea what equations can be used to solve this.

The Attempt at a Solution

From what I understand, the unpolarised light can lead to a reflected polarised beam and a refracted beam- this happens if the angle of incident is Brewster's Angle.

I am guessing the power of the refracted light is zero if the reflected light is fully polarised?

 

[JohnGaltis]

This is the second part of the question. First part asked for Brewster's Angle and the polarisation state(56.7degrees and Linear Polarisation)

 

[Summerry]

Hey John, you mind to show the steps done?

Update: It's alright I figured it out. :)