Question

Question #a3009

Answer 1

`59.0^@`, rounded to one decimal place.

Explanation:

If `theta_i` is polarizing angle and `theta_c` is critical angle for a medium, taking other medium as air for which refractive index`=1`, then the two are related via expression
`tantheta i=1/sintheta_c` ...........(1)
`=>theta_i=tan^-1(1/sintheta_c)`
Inserting given values we get
`theta_i=tan^-1(1/0.6)`
`theta_i=59.0^@`, rounded to one decimal place.