Light travels from a medium of refractive index µ1 to another of refractive index µ2 (µ1 > µ2). For total internal reflection of light, which is NOT true?
A. Light must travel from medium of refractive index µ1 to µ2.
B. Angle of incidence must be greater than the critical angle.
C. There is no refraction of light.
D. Light must travel from the medium of refractive index µ2 to µ1.
Answer:D
Light travels from a medium of refractive index µ1 to another of refractive index µ2 (µ1 > µ2). For total internal reflection of light, which is NOT true?
A. Light must travel from medium of refractive index µ1 to µ2. B. Angle of incidence must be greater than the critical angle. C. There is no refraction of light. D. Light must travel from the medium of refractive index µ2 to µ1.