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प्रश्न
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
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उत्तर
Focus of a concave mirror: The focus of a concave mirror is a point on the principal axis through which the light rays incident parallel to principal axis, pass after reflection from the mirror.
Focal length of a concave mirror: The distance of the focus from the pole of the concave mirror is called its focal length.
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संबंधित प्रश्न
Which type of mirror can form a real image?
Name the spherical mirror which can produce a virtual and diminished image of an object.
Select the correct option:
A concave mirror is made by cutting a portion of a hollow glass sphere of radius 30 cm. The focal length of the concave mirror is:
Define the following term:
concave mirror
Define the following term in relation to concave mirror.
Aperture
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
Complete the following diagrams shown in the following figures by drawing the reflected rays.
Spherical mirrors are one form of ______ mirrors.
A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
