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SOVA2 [1]
2 years ago
5

Light travels at 3.0 × 108 m/s in a vacuum. Use the index of refraction for water to determine the speed of light in water. Roun

d your answer to the nearest tenth.
Physics
2 answers:
rusak2 [61]2 years ago
5 0
The answer is 2.3. I just answered this question and got it right.
sp2606 [1]2 years ago
3 0

<u>Answer:</u> The velocity of light in water is 225056264.1 m/s.

<u>Explanation:</u>

To calculate the speed of light in medium (water), we use the formula:

\eta=\frac{c}{v}

where,

\eta = index of refraction of water = 1.333

c = speed of light in vacuum = 3\times 10^8m/s

v = speed of light in water = ?m/s

Putting values in above equation, we get:

1.333=\frac{3\times 10^8}{v}\\\\v=2.2505626406\times 10^8m/s

To round the speed of light in water to the nearest tenth place, we will multiply the exponent with the answer and then round off the tenth place.

2.2505626406\times 10^8=225056264.06

Rounding 0.06 to 1 because 6 is more than 5, we get:

\Rightarrow 225056264.1m/s

Hence, the velocity of light in water is 225056264.1 m/s.

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