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Question
What type of image/images are formed by:
a concave mirror?
Solution
A concave mirror can form
1) virtual, erect and large-sized images
2) real and inverted images of any size (small, same size or large)
RELATED QUESTIONS
What is meant by (i) principal focus of a convex mirror, and (ii) focal length of a convex mirror?
What would your image look like if you stood close to a large:
convex mirror?
How will you distinguish between a plane mirror, a concave mirror and a convex mirror without touching them?
Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed:
at 2F1,
Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed:
between F1 and the optical centre O of the lens.
Which of the above two cases shows the use of convex lens as a magnifying glass? 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?
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)
Magnification produced by a rear view mirror fitted in vehicles
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 |
