Question

say the formula of tatal internal reflection​

Answer 1

Answer:

θc=sin−1(n2n1) θ c = sin − 1 ⁡ ( n 2 n 1 ) for n1 > n2. Total internal reflection occurs for any incident angle greater than the critical angle θc, and it can only occur when the second medium has an index of refraction less than the first.

Explanation:

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Answer 2

Answer:

0c=sin-1(n2n 1) 0c=sin -1 (n2n 1)

for n1>n2.

i hope you understand

in 0 is the sign of pai