Question

if polarising angle is alpha and critical angle is beta. then​

Answer 1

Answer:

tan alpha .cos bita is equal to 1

Answer 2

Answer:

Sin β = 1 / tan α

Explanation:

Polarization Angle

It is the angle between the line of incidence and path of electric filed

Critical Angle;

It is the angle of incidence in a denser medium when angle of refraction comes out as Ninety degrees

Now to determine the relation between the angles

refractive index = μ = tan α for polarised light

Now when reflection takes place at critical angle

Sin β = 1 /μ

Putting the value of μ

Sin β = 1 / tan α