Check sibling questions

A diver at a depth 12 m inside water (a μω = 4/3) sees the sky in a cone of semi- vertical angle

(i) sin -1 4/3

(ii) tan -1 4/3

(iii) sin -1 3/4

(iv) 90°


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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.