0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

When viewing through a compound microscope, our eye should be positioned not on the eye-piece but a short distance away from it for best viewing why? How much should be that short distance between the eye and eye-piece?

Solution
Verified by Toppr

When we place our eyes too close to the eyepiece of a compound microscope, we are unable to collect much refracted light. As a result, the field of view decreases substantially. Hence, the clarity of the image gets blurred. The best position of the eye for viewing through a compound microscope is at the eye-ring attached to the eyepiece. The precise location of the eye depends on the separation between the objective lens and the eyepiece.

Was this answer helpful?
1
Similar Questions
Q1
When viewing through a compound microscope, our eye should be positioned not on the eye-piece but a short distance away from it for best viewing why? How much should be that short distance between the eye and eye-piece?
View Solution
Q2
When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a short distance away from it for best viewing. Why?
View Solution
Q3
Answer the following questions:

(a )The angle subtended at the eye by an object is equal to the angle subtended at the eye by the virtual image produced by a magnifying glass. In what sense then does a magnifying glass provide angular magnification?

(b) In viewing through a magnifying glass, one usually positions ones eyes very close to the lens. Does angular magnification change if the eye is moved back?

(c) 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?

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

(e) When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a short distance away from it for best viewing. Why? How much should be that short distance between the eye and eyepiece?
View Solution
Q4
The separation L between the objective (fo= 0.5 cm) and the eye piece(fe=5cm)of a compound microscope is 7.0 cm. Where should a small object be placed so that the eye is least strained ?
View Solution
Q5
In a compound microscope the objective and eye-piece have focal lengths of 9.5cm and 5cm respectively, and are kept at a distance of 20cm . The last image is formed at a distance of 25cm from eye-piece. What is the total magnification of the microscope?
View Solution