Physics UTME / JAMB 1985 Waves and Optics
A 45o triangular glass prism can be used as a reflector of light because
A
A refraction never takes place in such a prism
B
the angle of reflection equals the angle of incidence
C
the refractive index of glass is less than 1
D
it is transparent
E
the critival angle angle for glass is less than 45o