Physics · Ray Optics
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when the angle of incidence is 75% of the angle of the prism. Compute the speed of light in the prism. (Take speed of light in air = 3 × 108 m/s, sin(45°) = 0.707, sin(30°) = 0.5)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.62 × 108 m/s
- 22.12 × 108 m/s✓
- 31.52 × 108 m/s
- 41.92 × 108 m/s
Correct answer
2.12 × 108 m/s
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