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QAIPM-2012-Ph-1728: NEET 2012 Physics - Class 12 AIPM-2012-Ph-1728 Solution: A ray of light is incident at an angle of incidence \(i\), on…
A ray of light is incident at an angle of incidence , on one face of a prism of angle (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is , the angle of incidence is nearly equal to
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Step-by-Step Verified Solution
For normally emerge e = 0
Therefore r 2 = 0 and r 1 = A
Snell�s Law for Incident ray�s
1sin i = _ sin r 1 = _ sin A
For small angle
i = _ A