we know tanip=refractive index. and R.I=1/sinc. so tanip=1/sinc

4

Amandeep Singh answered this

All above answers are missing a key point
If light thown from denser medium (say water) towards rarer medium, then Tan (ip) = n (air)/n (water)

So in this case Sin ic = Tan ic

-4

+918xxxxxx36 answered this

Answer:-

7

Kelly answered this

tan p=1/sin c Sin p/cos p=1/sin c Sin p.sin c=cos p

-3

Hima Bindu answered this

Please find this answer

1

P. Narasimharao answered this

Refractive Index of a glass plate is 3 by 2 then the correct thickness of a glass plate that will permit the same number of wave length as that by an 18 centimetres long column of water is