In a simple microscope, the lens is held at a distance d from the eye and the image is formed at the least distance d of the distinct vision from the eye. What is the magnifying Power of the microscope ? Where f is the focal length of the lens.
The magnification produced by the objective lens and the eye lens of a compound microscope are 25 and 6 respectively. The magnifying power of this microscope is
Can a microscope function as a telescope by inverting it. Can a telescope function as a microscope ?
Focal length of objective and eye piece of telescope are 200 cm and 4 cm respectively. What is the length of telescope for normal adjustment?
A telescope has an objective of focal length 100 cm and an eye-piece of focal length 5 cm. What is the magnifying power of the telescope when it is in normal adjustment?
A reflecting type telescope has a large concave spherical mirror of radius of curvature 80 cm as objective. What is the magnifying power of telescope if eye piece used has a focal length of 1.6 cm ?
The focal length of the eye-piece of compound microscope is
For a normal relaxed eye, a simple microscope is rated as 3X. What will be the rating of a microscope for a relaxed farsighted eye whose near point is 50 cm.
In an astronomical telescope, focal length of eye piece is 5 cm and focal length of objective is 75 cm . The final image is formed at the least distance of distinct vision (=25 cm) from the eye. What is the magnifying power of the telescope ?
