Question

The highest refractive index among the following is of

• A. Glass
• B. Diamond
• C. Water
• D. Pearl

Answer 1

The correct option is B

Diamond

Refractive Index: The refractive index can be calculated by dividing the speed of light in vacuum by the speed of light in a medium.

Explanation for Correct answer:

• Option B: Diamond

1. The Refractive index of a diamond is $2.42$. which is highest among all the given options.
2. Thus option B is correct.

Explanation for Incorrect answer(s):

• Option A: Glass

1. The Refractive index of glass is $1.5$ which is less than the refractive index of diamond and pearl.
2. Thus, option A is not correct.

• Option C: Water

1. The Refractive index of water is $1.33$ which is less than the refractive index of diamond, glass, and pearl.
2. Thus, option C is not correct.

• Option D: Pearl

1. The Refractive index of a pearl is $1.52-1.69$ which is less than the refractive index of a diamond.
2. Thus, option D is not correct.

Since the refractive index of diamond is the highest among all given options.

Hence, Option B is the correct answer.