English

Define Resolving Power of a Microscope and Write One Factor on Which It Depends

Advertisements
Advertisements

Question

Define resolving power of a microscope and write one factor on which it depends

Advertisements

Solution

Resolving power of a microscope is the ability of the microscope to form separate image of two closely object placed near the microscope.

Resolving power of microscope is given by

`R.P. = (2μsinθ)/λ `
It is clear from the above equation, resolving power depends on the wavelength (λ) of the light used.

shaalaa.com
  Is there an error in this question or solution?
2016-2017 (March) All India Set 3

RELATED QUESTIONS

If this telescope is used to view the moon, what is the diameter of the image of the moon formed by the objective lens ? the diameter of the moon is 3.48 × 106 m and the radius of lunar orbit is 3.8 × 108m.


Magnifying power of a simple microscope is inversely proportional to the focal length of the lens. What then stops us from using a convex lens of smaller and smaller focal length and achieving greater and greater magnifying power?


Why must both the objective and the eyepiece of a compound microscope have short focal lengths?


A compound microscope has an objective of focal length 1.25 cm and eyepiece of focal length 5 cm. A small object is kept at 2.5 cm from the objective. If the final image formed is at infinity, find the distance between the objective and the eyepiece ?


An object is placed at a distance u from a simple microscope of focal length f. The angular magnification obtained depends


A simple microscope is rated 5 X for a normal relaxed eye. What will be its magnifying power for a relaxed farsighted eye whose near point is 40 cm?


Can the image formed by a simple microscope be projected on a screen without using any additional lens or mirror?


An eye can distinguish between two points of an object if they are separated by more than 0.22 mm when the object is placed at 25 cm from the eye. The object is now seen by a compound microscope having a 20 D objective and 10 D eyepiece separated by a distance of 20 cm. The final image is formed at 25 cm from the eye. What is the minimum separation between two points of the object which can now be distinguished?


A microscope is focussed on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?


A compound microscope consists of two converging lenses. One of them, of smaller aperture and smaller focal length, is called objective and the other of slightly larger aperture and slightly larger focal length is called eye-piece. Both lenses are fitted in a tube with an arrangement to vary the distance between them. A tiny object is placed in front of the objective at a distance slightly greater than its focal length. The objective produces the image of the object which acts as an object for the eye-piece. The eye-piece, in turn, produces the final magnified image.

The magnification due to a compound microscope does not depend upon ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×