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प्रश्न
Name the two kinds of spherical mirrors and distinguish between them.
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उत्तर
Two kinds of spherical mirrors are concave and convex.
Distinction between concave and convex mirror: A concave mirror's bulging surface is silvered and reflection takes place from the hollow surface but a convex mirror's inner surface is silvered and reflection takes place from the bulging surface.
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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
One half of a convex lens of focal length 10 cm is covered with a black paper. Can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens? Draw a ray diagram to justify your answer. A 4 cm tall object is placed perpendicular to its principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image.
A ray of light is incident normally on a plane mirror. What will be the:
- angle of incidence?
- angle of reflection?
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
Name the spherical mirror which can produce a virtual and diminished image of an object.
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).
Name the mirrors shown in Figure (a) and (b).
Define the term Normal.
An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.
