Depth h = 0.75 m
Critical angle of water –air surface C = sin –1 ( 1/ n )
Where n = index of refraction of water = 4/3
Plug the values we get C = 48.59 degrees
We know tan C = r / h
From this radius of the circle r = h tan C
= 0.8504 m
Diameter of the circle d = 2r = 1.7 m
9) A small light fixture is on the bottom of a swimming pool,0.75 m below the...
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