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प्रश्न
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उत्तर
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संबंधित प्रश्न
A concave mirror always forms a real image.
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :
(i) between the optical centre and principal focus of a convex lens.
(ii) anywhere in front of a concave lens.
(iii) at 2F of a convex lens.
State the signs and values of magnifications in the above-mentioned cases (i) and (ii).
Define the following term in relation to concave mirror.
Principal axis
Define the term Focus of a concave mirror.
The spherical mirror with a reflecting surface curved inward is called
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
