A ray of light enters a rectangular glass slab from air making an angle of 40 degrees with the normal. If the refractive index of glass relative to air is 1.5 and the speed of light in air is 3 x 10⁸ m/s, find the speed of light inside the glass slab.

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) 1.5 x 10⁸ m/s
2. (B) 2.25 x 10⁸ m/s
3. (C) 2 x 10⁸ m/s
4. (D) 2.5 x 10⁸ m/s

Verified Answer

Option (C): 2 x 10⁸ m/s

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