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प्रश्न
The erect image formed by a concave mirror is of size double the size of object. How are u and v related?
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उत्तर
Magnification is
m = `"I"/"O" = 20/"O" = 2`
∵ m = `-"v"/"u"`
∴ `-"v"/"u"` = 2
∴ v = -2u
But , u is always negative
∴ v = 2u
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संबंधित प्रश्न
Give one use each of a concave and a convex mirror.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
Name the kind of mirror used to obtain:
A real and diminished image.
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
Define the following term:
spherical mirror
Define the following term in relation to concave mirror.
Principal axis
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Define the term Principle focus.
What is “aperture”?
