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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 some angle would bend the most.
  • a)
    Kerosene
  • b)
    Water
  • c)
    Mustard oil
  • d)
    Glycerine
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
You are given water, mustard oil, glycerine, and kerosene. In which of...
Refractive index for water, mustard oil, glycerine and kerosene are:
μw ​= 1.33
μm ​= 1.47
μg ​= 1.473
μk ​= 1.44
Since refractive index of glycerine is highest, ray bends the most in case of glycerine.
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Most Upvoted Answer
You are given water, mustard oil, glycerine, and kerosene. In which of...
Understanding Refraction and Bending of Light
When a ray of light passes from one medium to another at an angle, it bends due to a phenomenon called refraction. The degree of bending is determined by the refractive index of the media involved.
Refractive Index Explained
- The refractive index (n) is a dimensionless number that indicates how much light slows down in a medium compared to its speed in a vacuum.
- A higher refractive index means light travels slower in that medium, resulting in more bending when changing media.
Refractive Indices of the Given Media
- Water: Refractive index ~ 1.33
- Mustard Oil: Refractive index ~ 1.46
- Glycerine: Refractive index ~ 1.47
- Kerosene: Refractive index ~ 1.44
Comparative Analysis
- Among the listed substances, glycerine has the highest refractive index (1.47).
- This means that when light travels from air (n ≈ 1.00) into glycerine, it slows down the most compared to the other liquids.
Conclusion
- Since light bends more when it enters a medium with a higher refractive index, glycerine will cause the ray of light to bend the most.
- Therefore, the correct answer is option 'D' (Glycerine).
By understanding the refractive indices of the given media, it is clear why glycerine leads to the greatest bending of light.
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