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प्रश्न
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उत्तर
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
State the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain your answer with the help of suitable ray diagrams.
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
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).
Is real image always inverted?
Define the term Normal.
