Advertisements
Advertisements
Question
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
Advertisements
Solution
Convex Mirror: This is because a convex mirror is used as side/rear view mirror because its field of view is larger and it forms virtual, erect and diminished images of objects behind.
APPEARS IN
RELATED QUESTIONS
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
- What will be the focal length of this mirror?
- Which type of spherical mirror will it provide?
- State whether this spherical mirror will diverge or converge light rays.
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
What is a spherical mirror?
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
State whether the image in part (a) is real or virtual?
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
What is a mirror formula?
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
