Advertisements
Advertisements
प्रश्न
Suggest two ways by which the resolving power of a microscope can be increased?
Advertisements
उत्तर
Resolving power of a microscope can be increased by
(i) decreasing the wavelength of light used
(ii) increasing the diameter of objective lens of the microscope
APPEARS IN
संबंधित प्रश्न
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?
Draw a ray diagram showing image formation in a compound microscope ?
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 ?
A man is looking at a small object placed at his near point. Without altering the position of his eye or the object, he puts a simple microscope of magnifying power 5 X before his eyes. The angular magnification achieved is
A compound microscope forms an inverted image of an object. In which of the following cases it it likely to create difficulties?
Draw a labelled ray diagram showing the formation of image by a compound microscope in normal adjustment. Derive the expression for its magnifying power.
The near vision of an average person is 25 cm. To view an object with an angular magnification of 10, what should be the power of the 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.
The focal lengths of the objective and the eye-piece of a compound microscope are 1.0 cm and 2.5 cm respectively. Find the tube length of the microscope for obtaining a magnification of 300.
What is meant by a microscope in normal use?
