SEMI VERTICAL ANGLE

Asked by  | 4th Mar, 2008, 08:01: AM

Expert Answer:

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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