Concepts Of Physics MCQ Edition [Volume 1]
- Exam
- Concepts Of Physics MCQ Edition [Volume 1]
- Subject
- Physics
- Chapter
- Geometrical Optics
Concepts Of Physics MCQ Edition [Volume 1] · Physics · Geometrical Optics
The defect where rays of different colours fail to converge at a...
The defect where rays of different colours fail to converge at a single point after passing through a converging lens is termed
Options
- Aspherical aberration
- Bcoma
- Cdistortion
- Dchromatic aberration
Correct answer
D. chromatic aberration
Step-by-step solution
The refractive index of the material of a lens varies with the wavelength (colour) of light. Since the focal length of a lens depends on the refractive index, rays of different colours have different focal lengths and fail to converge at a single point after passing through the lens.
This defect is known as chromatic aberration.
This defect is known as chromatic aberration.