Answer:

Explanation:
The relationship between the refractive index and the critical angle is given as follows:

where,
η = refractive index = 1.67
θc = critical angle =?
Therefore,


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No
For example a rock was broken into one big and one little piece. The properties of these 2 pieces are still the same even though they have different shapes.
D=s(t) so it would be d=10(.19) d=.19 FOR BITH SNDWERS