For the same angle of incidence the angles fo refreaction in media P,Q ,R and S are `50^(@) ,40^(@),30^(@),20^(@)` respectively the speed of lights is minimum in mediumA. PB. QC. RD. S

For the same angle of incidence the angles fo refreaction in media P,Q

1.	For the same angle of incidence the angles fo refreaction in media P,Q ,R and S are `50^(@) ,40^(@),30^(@),20^(@)` respectively the speed of lights is minimum in mediumA. PB. QC. RD. S
Answer» Correct Answer - c The speed of light reduces when it travels from rarer to densere medium when light travels from rarer to denser medium it bendds towards athe normal thus speed of light is minimum when it bends maximum towards the normal for same angle of incidence i.e andgle of refraction is least so angle of refraction is least i.e `20^(@)` in medium s

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For the same angle of incidence the angles fo refreaction in media P,Q ,R and S are `50^(@) ,40^(@),30^(@),20^(@)` respectively the speed of lights is minimum in mediumA. PB. QC. RD. S

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