Chapter 46 POLARIZATION

Example 46.1 Calculation of theta

In [1]:
from __future__ import division
import math
theta=math.degrees(math.acos(1/math.sqrt(2)))
theta=180-theta
print("Polarization angle theta=",theta)

Polarization angle theta= 135.0

Example 46.2 Angle of refraction

In [2]:
from __future__ import division
import math
theta_p= math.degrees(math.atan(1.5))
print("Theta_p in degrees=%.5f"%theta_p)
sin_theta_r= (math.sin(theta_p*math.pi/180))/1.5
theta_r=math.degrees(math.asin(sin_theta_r))
print("Angle of refraction fron Snells law in degrees=%.5f"%theta_r)

Theta_p in degrees=56.30993
Angle of refraction fron Snells law in degrees=33.69007

Example 46.3 Thickness of slab

In [3]:
from __future__ import division
lamda=5890 #A
n_e=1.553
n_o=1.544
s=(n_e)-(n_o)
x=(lamda)/(4*s)

print("The Value of x in m=",x)
#The answer provided in the textbook is wrong

The Value of x in m= 163611.111111113