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If the refractive index of water is 4/3 and that of given slab of glass immersed in it is 5/3. What is the critical angle for a ray of light tending to go from glass to water?

(a) sin-1\(\left(\cfrac34\right)\)

(b)  sin-1\(\left(\cfrac35\right)\)

(c)  sin-1\(\left(\cfrac45\right)\)

(d) Data given are insufficient to make any calculation

1 Answer

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by (38.4k points)
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Best answer

Correct option is  (c)  sin-1\(\left(\cfrac45\right)\)

Critical angle,

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