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riadik2000 [5.3K]
3 years ago
6

What is speed of light in crown glass?

Physics
1 answer:
german3 years ago
5 0

Answer:

1.97 x 10^8 m/s

Explanation:

refractive index of crown glass with respect to air, n = 1.52

speed of light in air, c = 3 x 10^8 m/s

Let v be the speed of light in crown glass.

By use of the definition of refractive index

n = \frac{c}{v}

where, n be the refractive index of crown glass, c be the speed of light in vacuum and v be the speed of light in crown glass

1.52 = \frac{3 \times 10^{8}}{v}

v = \frac{3 \times 10^{8}}{1.52}

v = 1.97 x 10^8 m/s

Thus, the speed of light in crown glass is 1.97 x 10^8 m/s.

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