Question

For a prism, 'A' is the angle of prism, 'δ' is the angle of deviation, µ is the refractive index of the material of a prism, the refractivity of the material of a prism is ______.

Options

• (μ - 1)

• μ

• (1 - μ)

• (μ + 1)

Answer 1

For a prism, 'A' is the angle of prism, 'δ' is the angle of deviation, µ is the refractive index of the material of a prism, the refractivity of the material of a prism is (μ - 1).