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प्रश्न
(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).
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उत्तर
(a) The person's face is between the pole and focus of the mirror.
(b) The image formed is erect, virtual and magnified.
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संबंधित प्रश्न
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?
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
State the position of object for which the image formed by a concave mirror is of same size.
A ray of light is incident towards a plane mirror at an angle of 30° with the mirror surface. What will be the angle of reflection?
How tall does a mirror have to be to fit an entire person’s body?
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
