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प्रश्न
How will you distinguish between a plane mirror, a concave mirror and a convex mirror without touching them?
उत्तर
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संबंधित प्रश्न
Find the focal length of a convex mirror whose radius of curvature is 32 cm.
Which mirror has a wider field of view?
What would your image look like if you stood close to a large:
convex mirror?
If a driver has one convex and one plane rear-view mirror, how would the images in each mirror appear different?
The diagrams show the appearance of a fork when placed in front of and close to two mirrors A and B, turn by turn.
Figure
(a) Which mirror is convex
(b) Which mirror is concave
Give reasons for your choice.
What is the effect on the size and position of the image of moving the object (i) towards the lens, and (ii) away from the lens?
The focal length of a convex mirror is equal to its radius of curvature.
Numerical problem.
A concave mirror produces three times magnified real image of an object placed at 7 cm in front of it. Where is the image located? (Ans: 21 cm in front of the mirror)
If the object is at infinity in front of a convex mirror the image is formed at infinity.
Match the following.
| Column I | Column II |
| Convex mirror | Radio telescopes |
| Parabolic mirror | Rear-view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
