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प्रश्न
What is a mirror formula?
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उत्तर
Mirror formula is the relation between the focal length f of the mirror, the distance u of the object from the pole of the mirror, and the distance v of the image from the pole.
Mirror formula is
1/v +1/u = 1/f.
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संबंधित प्रश्न
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
If a spherical mirror breaks, what type of mirrors are the individual pieces?
What type of mirror can be used to obtain a real image of an object?
Discuss the position and nature of image formed by a convex mirror when an object is moved from infinity towards the pole of mirror.
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
What do you understand by the term real image?
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.
The distance from the pole to the focus 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:
