Choose the right option for the brilliance of a diamond

Choose the right option for the brilliance of a diamond:

(a) Total internal reflection

(b) Reflection

(c) Shape

(d) Cutting

The right option for the brilliance of a diamond is (a) total internal reflection.

We know that the refractive index of the diamond is very large and the structure of the diamond supports in occurring of total internal reflection of light. This is the reason behind the brilliance of a diamond.

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