What are different formulae to calculate refractive index?

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Solution

$1 . r e f r a c t i v e i n d e x (μ) = \frac{s p e e d o f l i g h t i n v a c u u m}{s p e e d o f l i g h t i n m e d i u m} = \frac{c}{v} 2 . μ = \frac{\sin i}{\sin r} w h e r e i a n d r a r e t h e a n g l e o f i n c i d e n c e a n d a n g l e o f r e f r a c t i o n r e s p e c t i v e l y . 3 . μ = \frac{\sin (A + δ_{m}) / 2}{\sin A / 2} w h e r e δ_{m} i s t h e a n g l e o f m i n i m u m d e v i a t i o n a n d A i s t h e a n g l e o f p r i s m$ _.

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What are different formulae to calculate refractive index?

1. refractive index (μ) = speed of light in vacuumspeed of light in medium= cv2. μ = sin i sin r where i and r are the angle of incidence and angle of refraction respectively.3. μ = sin (A + δm) / 2sin A /2 where δm is the angle of minimum deviation and A is the angle of prism .