Questions
A prism of refractive index has angle of prism . One of the refracting surface of prism is silvered. Find the angle of incidence for which the ray retraces its path
detailed solution
Correct option is C
For light to retrace its path, it should fall perpendicularly on silvered side.Then, according to Snell’s law,1×sini=μsin300⇒sini=2×12 ∴i=450Talk to our academic expert!
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