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Question
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
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Solution
Convex mirror always produces erect and virtual images. The images formed are diminished, i.e. the size of the image is shorter than the size of the object.
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RELATED QUESTIONS
An image that cannot be obtained on a screen is called ______.
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. |
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Complete the following diagrams in Figure by drawing the reflected rays for the incident rays 1 and 2.
State two uses of a concave mirror.
Define the following term in relation to concave mirror.
Principal axis
What is the relation between focal length and radius of curvature of a concave mirror?
Define focal length.
