For an equilateral prism, it is observed that when a ray strikes grazingly at one face it emerges grazingly at the other. Its refractive index will be
Answer & explanation
Correct answer: option 3
From the diagram,
$μ=\frac{\sin 90°}{\sin 30°}=2$
For an equilateral prism, it is observed that when a ray strikes grazingly at one face it emerges grazingly at the other. Its refractive index will be
Correct answer: option 3
From the diagram,
$μ=\frac{\sin 90°}{\sin 30°}=2$