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प्रश्न
Define the term Pole.
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उत्तर
Pole is the centre of the reflecting surface, in this case, a spherical mirror.
संबंधित प्रश्न
Name the two types of spherical mirrors. What type of mirror is represented by the:
- back side of a shining steel spoon?
- front side of a shining steel spoon?
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 is the advantage of using a carbon paper rather than a white paper?
A ray of light travels from a denser medium to a rarer medium. How will it bend?
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
The minimum length of the mirror required to see the full image of the person is half ‘ of his height.
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?
