What is spherical aberration? how can this defect be minimized in ordinary lenses. of physics?
Answers
Answered by
1
Answer:
Answer ♡
- When a parallel beam of light hit on the surface of a lens, refraction of the light occurs and it forms an image. In order to produce a clear and perfect image, focal point of all rays in a beam of light should be same. In a normal lens, the light rays do not converge on the same point and makes the image to appear blurred. This intrinsic defect produced is known as 'spherical aberration'.
Learn More ♡
Ways to minimize the spherical aberration:
- By using stops i.e. by placing an opaque sheet with a hole, so that light is focused on the center of the lens and the aperture is reduced.
- By using a pair of convex lenses that are placed apart from each other in a distance equal to difference in their focal lengths.
Answered by
7
Answer:
Answer ♡
- When a parallel beam of light hit on the surface of a lens, refraction of the light occurs and it forms an image. In order to produce a clear and perfect image, focal point of all rays in a beam of light should be same. In a normal lens, the light rays do not converge on the same point and makes the image to appear blurred. This intrinsic defect produced is known as 'spherical aberration'.
Learn More ♡
- Ways to minimize the spherical aberration:
- By using stops i.e. by placing an opaque sheet with a hole, so that light is focused on the center of the lens and the aperture is reduced.
- By using a pair of convex lenses that are placed apart from each other in a distance equal to difference in their focal lengths.
Similar questions