The deviation produced by a prism is

Question

The deviation produced by a prism is (A) same for all wavelengths (B) greatest for red and least for violet (C) greatest for violet and least for red (D) the prism produces no deviation

Tardigrade Admin · Accepted Answer

Deviation is given by, δ=A(μ - 1) Also, refractive index μ propto (1/λ ) As λ R>λ ν ∴ μ R < μ ν ∴ δR < δν

Q. The deviation produced by a prism is

same for all wavelengths

greatest for red and least for violet

greatest for violet and least for red

the prism produces no deviation

Deviation is given by, $δ = A (μ - 1)$
Also, refractive index $μ \propto \frac{1}{λ}$
As $λ_{R} > λ_{ν}$
$∴ μ_{R} < μ_{ν}$
$∴ δ_{R} < δ_{ν}$

Q. The deviation produced by a prism is

same for all wavelengths

greatest for red and least for violet

greatest for violet and least for red

the prism produces no deviation

Deviation is given by, δ=A(μ−1) Also, refractive index μ∝λ1​ As λR​>λν​ ∴μR​<μν​ ∴δR​<δν​

Deviation is given by, $δ = A (μ - 1)$
Also, refractive index $μ \propto \frac{1}{λ}$
As $λ_{R} > λ_{ν}$
$∴ μ_{R} < μ_{ν}$
$∴ δ_{R} < δ_{ν}$