The refractive index of a medium relative to air is 1.8. Calculate the critical angle for the medium to the nearest degree.

by Sunday | Aug 29 | Physics WAEC | 0 comments

A. 18°
B. 34°
C. 45°
D. 68°
E. 90°

Correct Answer:

Option B – 34°

Users Also Read These:

$A ray of light traveling from a rectangular glass block of refractive index 1.5 into air strikes the block at an angle of incidence of 30. Calculate its angle of refraction.$
A ray of light traveling from a rectangular glass…
$The refractive index of a material is 1.5. Calculate the critical angle at the glass-air interface?$
The refractive index of a material is 1.5. Calculate…
$The critical angle for light travelling from a transparent medium to air s measured as 34°. The refractive index of the medium is?$
The critical angle for light travelling from a…
Assume that, for a certain country in a given year,…
$A ray of light travelling from glass into ethyl alcohol is incident at the boundary at an angle of incidence 30°. Calculate the angle of refraction. [Refractive index of glass =1.5; refractive index of ethyl alcohol = 1.36]$
A ray of light travelling from glass into ethyl…