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Question
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
Solution 1
We prefer a convex mirror as a rear-view mirror in vehicles because it gives a wider field of view, which allows the driver to see most of the traffic behind him. Convex mirrors always form a virtual, erect, and diminished image of the objects placed in front of it.
Solution 2
A driver prefers to use a convex mirror as a rear-view mirror in his vehicle because this type of mirror has a wider field of view. Besides this, the convex mirror always forms virtual, erect and small sized images of the large number of objects at the same time.
RELATED QUESTIONS
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.
Explain with a suitable diagram, how a concave mirror converges a parallel beam of light rays. Mark clearly the pole, focus and centre of curvature of concave mirror in this diagram.
Which mirror always produces a virtual, erect and diminished image of an object?
What type of mirror should be used as a shop security mirror?
A ray of light of going towards the focus of a convex mirror becomes parallel to the principal axis after reflection from the mirror. Draw a labelled diagram to represent this situation.
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 image formed by a spherical mirror is virtual. The mirror will be:
(a) concave
(b) convex
(c) either concave or convex
(d) metallic
A shop security mirror 5.0 m from certain items displayed in the shop produces on-tenth magnification.
What is the type of mirror?
Name two factors on which the focal length of a lens depends.
Write true or false
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
The image formed by a convex mirror is
List four properties of the image formed by a convex mirror when object is placed between focus and pole of the mirror.
Nature of the images formed by a convex mirror is _______.
A full length image of a distant tall building can definitely be seen by using ______.
The distance between an object and a convex lens is changing. It is noticed that the size of the image formed on a screen is decreasing. Is the object moving in a direction towards the lens or away from it?
Assertion: A real image cannot be produced by plane or convex mirror.
Reason: The focal length of a convex mirror is always taken as positive.
Why a convex mirror is preferred for rearview mirrors in cars?
Higher-Order Thinking Skills:
A convex mirror is in water. What should be the change in its focal length?
