wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following quantities related to a lens depend on the wavelength or wavelengths of incident light?

A
Power
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Focal length
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Chromatic aberration
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Radii of curvature
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
A Power
B Focal length
C Chromatic aberration
The focal length of the lens varies directly with the wavelength of the light used and as wavelength is inversely related to refractive index, the focal length also varies inversely with it. This is the principal cause of the phenomena of chromatic aberration. The frequency of light has no effect on the focal length.
So focal length increases with wavelength but decreases with refractive index and vice versa.
And as focal length and power are inversely proportional.
Therefore the power, focal length and chromatic aberration of a lens depend on the wavelength or wavelengths of incident light.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Defects in Images
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon