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संबंधित प्रश्न
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
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.
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
What is a spherical mirror?
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
What type of mirror can be used to obtain a real image of an object?
The sun is seen before the sunrise and after the sunset.
Define the following term in relation to concave mirror.
Principal focus
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
