English

"A Telescope Resolves Whereas a Microscope Magnifies." Justify this Statement ? - Physics

Advertisements
Advertisements

Question

"A telescope resolves whereas a microscope magnifies." Justify this statement ?

Advertisements

Solution

Through telescope, we see the objects that are at infinite distance from the observer. These objects are already far apart from each other, but due to infinite distance from the observer, they do not appear distinctly. Thus, the telescope resolves these distant objects so that we can see them distinctly. On the other hand, a microscope magnifies extremely small objects. Thus, one can say that "a telescope resolves whereas a microscope magnifies".

shaalaa.com
Optical Instruments - Telescope
  Is there an error in this question or solution?
2014-2015 (March) Foreign Set 2

RELATED QUESTIONS

Draw a labeled ray diagram to obtain the real image formed by an astronomical telescope in normal adjustment position. Define its magnifying power.


You are given the following three lenses. Which two lenses will you use as an eyepiece and as an objective to construct an astronomical telescope ? Give reason

Lenses Power (D) Aperture (cm)
L1 3 8
L2 6 1
L3 10 1

Draw a labelled ray diagram of an image formed by a refracting telescope with the final image formed at infinity. Derive an expression for its magnifying power with the final image at infinity


Write the two important factors considered to increase the magnifying power?


Draw a labelled ray diagram of an astronomical telescope to show the image formation of a distant object. Write the main considerations required in selecting the objective and eyepiece lenses in order to have large magnifying power and high resolution of the telescope.


An astronomical telescope is to be designed to have a magnifying power of 50 in normal adjustment. If the length of the tube is 102 cm, find the powers of the objective and the eyepiece.


A Galilean telescope is 27 cm long when focussed to form an image at infinity. If the objective has a focal length of 30 cm, what is the focal length of the eyepiece?


(i) What is meant by resolving power of a telescope?
(ii) State any one method of increasing the resolving power of an astronomical telescope.


An astronomical telescope uses two lenses of powers 10 dioptres and 1 dioptre. If the final image of a distant object is formed at infinity, calculate the length of the telescope


Draw a labelled ray diagram showing the formation of an image by a refracting telescope when the final image lies at infinity.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×