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प्रश्न
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
पर्याय
concave
convex
cylindrical
parabolic
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उत्तर
convex
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संबंधित प्रश्न
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.
Which type of mirror can form a real image?
A virtual image larger than the object can be produced by a ______.
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it.
Find : (a) the focal length of the mirror (b) position of image
Define the following term in relation to concave mirror.
Principal axis
Define the following term in relation to concave mirror.
Aperture
For a spherical mirror, ______ is true.
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
