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Question
State two uses of a convex mirror.
Solution
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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RELATED QUESTIONS
In a convex spherical mirror, reflection of light takes place at:
(a) a flat surface
(b) a bent-in surface
(c) a bulging-our surface
(d) an uneven surface
If the focal length of a spherical mirror is 12.5 cm, its radius of curvature will be:
(a) 25 cm
(b) 15 cm
(c) 20 cm
(d) 35 cm
What is the advantage of using a convex mirror as rear-view mirror in vehicles as compared to a plane mirror? Illustrate your answer with the help of labelled diagrams.
Name two factors on which the focal length of a lens depends.
The diagram given below in fig shows a ray of light AO falling on a surface separating two media. Draw the refracted ray in each, case.
The mirror used as rear-view mirror in vehicles ______.
Assertion: Convex mirrors are used as a rearview mirror in vehicles for observing traffic at our back.
Reason: A convex mirror has a much larger field of view.
If the object is at infinity in front of a convex mirror the image is formed at infinity.
Higher-Order Thinking Skills:
A convex mirror is in water. What should be the change in its focal length?
