Raju is doing an experiment with the glass slab. He focussed the light towards the glass slab at an angle 30°.

Monjur Alahi

Raju is doing an experiment with the glass slab. He focussed the light towards the glass slab at an angle 30°. What would be tire angle of emergence? 

A) 30° 

B) 0° 

C) 90° 

D) >30°


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Salim Ahmed Kawsar

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Correct option is  A) 30°

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