If you added enough ropes and pulleys to lift any size mass would it be possible to never have to apply a force to move your mas
2 answers:
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Answer:
C ) 1.53
Explanation:
The critical angle of a material is given by the formula
where
c is the critical angle
n is the refractive index
This formula is valid if the second medium is air (which is the case of the problem).
In this problem, we know the critical angle:
Therefore we can rearrange the equation to find the refractive index: