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प्रश्न
State two uses of a convex mirror.
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उत्तर
Two USES OF CONVEX MIRROR:
- It is used as a REARVIEW MIRROR.
- It is used as a VIGILANCE MIRROR
- It is used as a REFLECTOR IN STREET LAMPS
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संबंधित प्रश्न
Which mirror has a wider field of view?
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 a labelled ray diagram to show the formation of image in a convex-mirror when the object is at infinity. Mark clearly the pole and focus of the mirror in the diagram.
Draw diagram to show how a convex mirror can be used to give a large field of view.
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.
The radius of curvature of a convex mirror used as a rear view mirror in a moving car is 12.0 m. A truck is coming from behind it at a distance of 3.54 m. Calculate (a)
- position and
- size of the image relative to the size of the truck.
- What will be the nature of the image?
A 5 cm tall object is placed perpendicular to the principle axis of a convex lens of focal length 12 cm. The distance of the object from the lens is 8 cm. Using the lens formula, find the position, size and nature of the image formed.
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)
A convex rearview mirror is preferred over a plane mirror in a car. Why?
