SEMI VERTICAL ANGLE
Asked by | 4th Mar, 2008, 08:01: AM
The maximum angle of incidence for which light is not internally reflected is
1/(4/3) = sin i/ sin 900
sin i = 3/4
From geometry you can see that this is equal to the semi vertical angle of the cone of light formed underwater.
Hence i = sin inverse 3/4.
Answered by | 19th May, 2008, 06:16: PM
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