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प्रश्न
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
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उत्तर
(a) Concave mirror
(b) Concave mirror
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संबंधित प्रश्न
Name the two types of spherical mirrors. What type of mirror is represented by the:
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 carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Name the kind of mirror used to obtain :
A real and enlarged image
When an object of height 1 cm is kept at a distance 4 cm from a concave mirror, its erect image of height 1.5 cm is formed at a distance 6 cm behind the mirror. Find the focal length of mirror, by drawing.
An object 5 cm high is placed at a distance 60 cm in front of a concave mirror of focal length 10 cm. Find the position and size of the image.
