Why is the aperture of the objective lens greater than that of the eyepiece in a telescope?
Important Questions on Human Eye and Optical Instruments
What change in the image will take place if half of the aperture of the objective lens in a telescope is covered by a sheet of opaque paper?
Which lens of an astronomical telescope forms a real image and which lens a virtual image?
Why is the final image inverted in an astronomical telescope?
Why is the diameter of the objective of an astronomical telescope made large?
In what type of a telescope, the final image is erect?
The magnifying power of a simple microscope is given by where is the least distance of distinct vision. For a long-sighted person is greater than the usual. Does it mean that the magnifying power of a simple microscope is greater for a long-sighted person as compared to a normal person?
