BPSC – Combined Competitive Examination · ప్రశ్న 114
In which medium will the speed of light be minimum?
సమాధానం చూపించు & వివరణ
సమాధానం: (C) Glass
వివరణ
Speed of light = c/n; the higher the refractive index, the slower the light.
- (A) తప్పు
Wrong: maximum in vacuum.
- (B) తప్పు
Wrong: nearly as fast as in vacuum.
- (C) సరైనది
Correct: glass (n ≈ 1.5) slows light the most here.
- (D) తప్పు
Wrong: n ≈ 1.33, less than glass.
- (E) తప్పు
Wrong: only one of the options A–D is correct.