Student Login

Home›Chapters›Ray Optics PYQs›Prism, Dispersion & Scattering›Question 58

MHT CET 2021 (23 Sep, Shift 2) · Prism, Dispersion & Scattering

Prism, Dispersion & Scattering question from MHT CET 2021 (23 Sep, Shift 2)

Q58MHT CET 2021 · 23 SEP · SHIFT 2Easy

Prism, Dispersion & Scattering

'Circle of least confusion' refers to which one of the following defects occurring in images formed by mirrors or lenses?

Show answer and solution

Answer: (d)

In spherical aberration, marginal and paraxial rays focus at different points.
The smallest blurred patch between these foci is the circle of least confusion.
So the answer is (d) spherical aberration.

Report a mistake

More questions on Prism, Dispersion & Scattering

Find the value of the angle of emergence from the prism. Refractive index of the glass is…NEET 2021
A prism of refractive index μ and angle of prism A is placed in the position of minimum…JEE Main 2021 (25 Jul, Shift 2)
Cross-section view of a prism is the equilateral triangle ABC in the figure. The minimum…JEE Main 2021 (31 Aug, Shift 2)
A ray of light is incident at an angle 'I' on one face of thin prism. The ray emerges…MHT CET 2021 (21 Sep, Shift 1)
A ray of light passing through a prism ( μ = √(3)) suffers minimum deviation. It is found…JEE Main 2021 (22 Jul, Shift 2)
A ray of light is incident on one face of an equilateral glass prism having refractive…MHT CET 2021 (24 Sep, Shift 2)
A deviation of 2 ° is produced in the yellow ray when prism of crown and flint glass are…JEE Main 2021 (16 Mar, Shift 2)
A prism of refractive index n1 and another prism of refractive index n2 are stuck…JEE Main 2021 (27 Jul, Shift 1)