Polarization Formula and Sample Sums

Polarization Formula :

Polarization tan θ is equal to the product of the other medium n2 is divided by initial medium n1 . Hence the polarization formula has been written as,

tan θ  = n2 / n1

Where,

n1 → initial medium

n2 → other medium

I → Icos2θ

Sample Sums :

Sum1 :

Calculate the value of polarizing light angles when the refractive index of green color glass is 1.562 that of violet color is 1.345.

Solution :

We have,

n1 = 1.562

n2 = 1.345

Using the formula we have,

tan θ = n2/n1

tan θ = 1.345/1.562

tan θ = 0.86

θ = 40.73°.

Sum2 :

Calculate the value of polarizing light angles when the refractive index of green color glass is 1.671 that of violet color is 1.261.

Solution :

We have,

n1 = 1.671

n2 = 1.261

Using the formula we have,

tan θ = n2/n1

tan θ = 1.261/1.671

tan θ = 0.75

θ = 37.04°.

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