Telescope & Microscope 2
| Description: to increase their physics knowledge . | |
| Number of Questions: 30 | |
| Created by: Vaibhav Pathak | |
| Tags: p y h 1 Combinations of Mirrors and Thin Lenses Ray Optics and Optical Instruments Lenses and Images Refraction in Lenses Ray Optics Magnification Thin Lens Formula |
Simple microscope was made by
A sextant is used to measure
Astigmatism can be corrected by using
In a direct vision spectroscope, one uses
In an astronomical telescope, the final image for normal adjustment is formed at
The magnifying power of a telescope can be increased
The final image produced by a compound microscope is
For observing a cricket match a binocular is preferred to a terrestrial telescope because
The final image produced by a simple microscope is
An endoscope is a
The length of a simple astronomical telescope is
The image of a distant object as seen through an astronomical telescope is
When the length of a microscope tube increases, its magnifying power
Which of the following combinations of lenses is used as a compound microscope?
The magnifying power of a simple microscope can be increased if we use eye piece of
In the focal length of the objective lens is increased then
In myopia
The focal length of the objective of a microscope is
Electron microscope is superior to an optical microscope in
An optical instrument gives the magnifying power which is
The focal length of a normal eye lens is about
In which of the following the final image is erect?
When objects at different distances are seen by the eye, which of the following remains constant?
Presbyopia can be corrected by
Radio telescope is used to see
A man wearing glasses of focal length +1 m cannot see clearly beyond 1 m
To produce a magnified erect image of a far off object, we will require a convex lens along
In compound microscope for large magnification size, the eye piece should be of focal length
Directions: The following question has four choices out of which ONLY ONE is correct.
Myopia is due to
In case of hypermetropia