मराठी

Define Magnifying Power of a Microscope in Terms of Visual Angle. - Physics (Theory)

Advertisements
Advertisements

प्रश्न

Define the magnifying power of a microscope in terms of visual angle.

टीपा लिहा

उत्तर

Magnifying power of a microscope is defined as the ratio of visual angle subtended by the image at the eye to the angle subtended by the object when both are at the distance of district vision.

i.e.; M = `β/α`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2013-2014 (March)

APPEARS IN

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

A compound microscope consists of an objective lens of focal length 2.0 cm and an eyepiece of focal length 6.25 cm separated by a distance of 15 cm. How far from the objective should an object be placed in order to obtain the final image at

  1. the least distance of distinct vision (25 cm), and
  2. infinity?

What is the magnifying power of the microscope in each case?


A person with a normal near point (25 cm) using a compound microscope with the objective of focal length 8.0 mm and an eyepiece of focal length 2.5 cm can bring an object placed at 9.0 mm from the objective in sharp focus. What is the separation between the two lenses? Calculate the magnifying power of the microscope.


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


How can the resolving power of a compound microscope be increased? Use relevant formula to support your answer.


Suggest two ways by which the resolving power of a microscope can be increased?


A compound microscope uses an objective lens of focal length 4 cm and eyepiece lens of focal length 10 cm. An object is placed at 6 cm from the objective lens. Calculate the magnifying power of the compound microscope. Also calculate the length of the microscope.


Consider the following two statements :-

(A) Line spectra contain information about atoms.

(B) Band spectra contain information about molecules.


What is the advantage of a compound microscope over a simple microscope?


With the help of a ray diagram, show how a compound microscope forms a magnified image of a tiny object, at least distance of distinct vision. Hence derive an expression for the magnification produced by it.


In a compound microscope an object is placed at a distance of 1.5 cm from the objective of focal length 1.25 cm. If the eye-piece has a focal length of 5 cm and the final image is formed at the near point, find the magnifying power of the microscope.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×