When a beam of white light is allowed to pass through convex lens parallel to principal axis, the different colours of light converge at different point on the principle axis after refraction. This is called :
Show Hint
Chromatic aberration occurs because shorter wavelengths (blue) refract more than longer wavelengths (red).
- Scattering
- Chromatic Aberration
- Spherical Aberration
- Polarisation
The Correct Option is B
Solution and Explanation
- Chromatic aberration occurs due to the wavelength-dependent refractive index of the lens material.
- Different wavelengths (colors) of light refract at different angles, causing them to converge at different points along the principal axis.
- This phenomenon leads to a blurry or colored edge in images formed by the lens.
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Concepts Used:
Ray Optics and Optical Instruments
Optics, deals with the determination of behaviour and the properties of light, along with its interactions with the matter and also with the instruments that are used to detect it.
Ray optics is also known as the geometrical optics and it is a branch of science which describes light propagation.
Reflection is the change in direction of light at an interface in-between two different media so that the wave-front returns into a medium from which it was originated.
Speed of light is the rate at which the light travels in free space.
A phenomenal change in image formed when the light is passed from one medium to another which is called Refraction.
Total Internal Reflection is the reflection of light when the light ray enters into a rarer medium from a denser medium and the angle of incidence is higher than the critical angle of incidence then that light ray will be reflected back to the denser medium.
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