The defect in image formation for the wandering of the focus on the principal axis of a lens is called ________.
spherical aberration
The correct answer is spherical aberration.
Combining convex and concave lenses appropriately. Using a stop (aperture) to block the marginal rays (those passing through the edge), although this reduces the brightness of the image. Using lenses with large focal lengths compared to their diameter (small relative aperture). It is important to correct spherical aberration for high-quality optical systems like telescopes, microscopes, and cameras.
Similar Questions
Due to which scientific phenomenon does a stick, when partly immersed in water, appears to be bent?
Convex mirror is used as:
The phenomenon of total internal reflection can occur when light travels from:
The phenomenon of interference in light waves is a direct consequence of:
When a ray of light is passed through a prism, it splits into his constituent colours. This phenomenon is called:
Important Questions from Optics
Who was the first one to use a glass prism to obtain the spectrum of sunlight?
Twinkling of stars is due to:
In which a convex mirror is used?
A. Rear View mirrors in vehicles
B. Glass windows
C. Makeup Mirror
D. Kaleidoscope
An object is placed 10 cm in front of a lens. The image formed is real, inverted and of same size as the object. What is the focal length and nature of the lens?
The power of a lens is -2.5 D. The type of lens and its focal length are respectively:
