![For the same angle of incidence, the angles of refraction in media P, Q, R and S are 50^o, 40^o, 30^o, 20^o , respectively. The speed of light is minimum in medium : For the same angle of incidence, the angles of refraction in media P, Q, R and S are 50^o, 40^o, 30^o, 20^o , respectively. The speed of light is minimum in medium :](https://i.ytimg.com/vi/HduUDWyF7xA/maxresdefault.jpg)
For the same angle of incidence, the angles of refraction in media P, Q, R and S are 50^o, 40^o, 30^o, 20^o , respectively. The speed of light is minimum in medium :
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