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प्रश्न
A convex mirror is used
विकल्प
as a shaving mirror
as a head mirror by a dentist
as a rear view mirror by a driver
as a reflector in torch
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उत्तर
A convex mirror is used as a rear view mirror by a driver.
APPEARS IN
संबंधित प्रश्न
An object is placed at a distance of 30 cm in front of a convex mirror of focal length 15 cm. Write four characteristics of the image formed by the mirror.
If the image formed by a spherical mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it? Draw a labelled ray diagram to support your answer.
What is meant by (i) principal focus of a convex mirror, and (ii) focal length of a convex mirror?
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
State whether the following statement is true or false:
A diverging mirror is used as a rear-view mirror.
Fill in the following blank with a suitable word:
A ray of light which is parallel to the principal axis of a convex mirror, appears to be coming from ............ after reflection from the mirror.
The image formed by a spherical mirror is virtual. The mirror will be:
(a) concave
(b) convex
(c) either concave or convex
(d) metallic
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?
Draw the given diagram in your answer book and complete it for the path of a ray of light after passing through the lens.
A boy is standing at a distance of 3m in front of a plane mirror. The distance between the boy and his image is ______m.
