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xz_007 [3.2K]
3 years ago
13

60 POINTS ANSWER CORRECTLY

Physics
2 answers:
ohaa [14]3 years ago
5 0

Answer:

C ) 1.53

Explanation:

The critical angle of a material is given by the formula

sin c = \frac{1}{n}

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:

c=40.8^{\circ}

Therefore we can rearrange the equation to find the refractive index:

n=\frac{1}{sin c}=\frac{1}{sin 40.8^{\circ}}=1.53

nexus9112 [7]3 years ago
3 0

Answer:

The answer is "C"

Explanation:

I just took the test and got it correct.

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A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.50
laila [671]

Answer:

The ball is dropped at a height of 9.71 m above the top of the window.

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