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You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?
(a) Kerosene
(b) Water
(c) Mustard oil
(d) Glycerine
Answer
- A ray of light incident from a rarer to a denser medium bends towards the normal .
- The extent of the light ray bending can be measured by the angle of refraction .
- The angle of refraction will be highest in the medium with the highest refractive index (or optical density).
- Glycerine has the highest refractive index from the given options.
- Hence, light in glycerine would bend light the most.
So, the correct
answer is (d)
