AP EAMCET · PHYSICS · Ray Optics
A well-cut diamond appears bright because
- A it emits light
- B it is radioactive
- C of its total internal reflection
- D it has high density
Answer & Solution
Correct Answer
(C) of its total internal reflection
Step-by-step Solution
Detailed explanation
As we know that, the refractive index \(\mu\) of diamond is highest. And since, \(\mu=\frac{1}{\sin \theta_c}\) where, \(\theta_C\) is critical angle and least. So, chances of total internal reflection will be highest inside diamond. Hence, diamond appears bright.
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