Light enters from air into a glass plate having refractive index `1.50`. What is the speed of light in glass? The speed of light in vaccum is `3 xx 10^(8) m s^(-1)`.

Explanation

To find the speed of light in glass, we can use the formula related to the refractive index. The refractive index (n) of a medium is defined as the ratio of the speed of light in vacuum (c) to the speed of light in that medium (v).

The formula is given by:
\[ n = \frac{c}{v} \]

Where:
- \( n \) = refractive index of the medium (for glass, \( n = 1.50 \))
- \( c \) = speed of light in vacuum (\( c = 3 \times 10^8 \, \text{m/s} \))
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