sophiegrandebuter96 sophiegrandebuter96

18-05-2020
Physics

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What is the critical angle for glass when the refractive index is 1.45

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Chelboy Chelboy

18-05-2020

Answer:43.6°

Explanation:

Refractive index=n=1.45

Critical angle=c

n=1/sinc

1.45=1/sinc

Cross multiply

1.45sinc=1

Divide both sides by 1.45

(1.45sinc)/1.45=1/1.45

sinc=0.6897

c=sin(inverse)(0.6897)

c=43.6°

Critical angle is 43.6°

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