Science, asked by yuvrajsingh8018, 1 year ago

The critical angle in a transparent substance surrounded by air is 30°.

Answers

Answered by aaustinmcgee10
0



The correct option is: (B) 1.5


Explanation:


Use ni sin θc = nr sin (90), nr = 1 … ni = 2, then n = c / v to find v.

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