Answer:
a) 0.159
b) 0.84
Explanation:
The Horizontal component is 2.3 times the vertical component
Let the horizontal electric field component = 
Let the vertical electric field component = 
The formula for light intensity is given by:
..............................(1)
is the resolution of the vertical and horizontal components, 
..................(2)
Light intensity before the glasses were put on:
.............................(3)
Put equation (2) into equation (3)
.............................(4)
After the glasses were put on the horizontal component vanishes, i.e. 
...................................(5)
Divide equation (5) by equation (4)
...............................(6)
But
......................(7)
Insert equation (7) into (6)


b) When the sunbather lies on his side, the vertical component vanishes, i.e 



