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संबंधित प्रश्न
Explain the following term related to spherical lenses:- aperture
Explain the following term related to spherical lenses:- principal focus
Match the items given in Column I with one or more items of Column II.
| Column I | Column II | ||
| (a) | A plane mirror | (i) | Used as a magnifying glass. |
| (b) | A convex mirror | (ii) | Can form image of objects spread over a large area. |
| (c) | A convex lens | (iii) | Used by dentists to see enlarged image of teeth. |
| (d) | A concave mirror | (iv) | The image is always inverted and magnified. |
| (e) | A concave lens | (v) | The image is erect and of the same size as the object. |
| (vi) | The image is erect and smaller in size than the object. |
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at (a) 90°, and (b) 60°.
Name the kind of mirror used to obtain :
A real and enlarged image
Define the following term in relation to concave mirror.
Radius of curvature
Complete the following diagrams shown in the following figures by drawing the reflected rays.
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
