Question

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Answer 1

Step-by-step explanation:

● Given :

1) Velocity of light in air = 3 x 10⁸ m/a

2) Refractive Index of Glass = 1.5

● To Find :

• Velocity of light in Glass = ?

● Formula :

$\frac{velocity \: of \: light \: in \: air \: }{velocity \: of \: light \: in \: glass} = refractive \: index \: of \: glass$

Hence,

1.5 = 3 x 10⁸ / velocity in glass

Velocity in Glass = 3 x 10⁸ / 1.5

Velocity in Glass = 2 x 10⁸ m/s.

● Answer : 2 x 10⁸ Is the velocity in Glass.