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प्रश्न
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उत्तर
Magnification = height of image / height of object.
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संबंधित प्रश्न
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
What type of image is formed:
on a cinema screen?
A 50 cm tall object is at a very large distance from a diverging lens. A virtual, erect and diminished image of the object is formed at a distance of 20 cm in front of the lens. How much is the focal length of the lens?
If a spherical mirror breaks, what type of mirrors are the individual pieces?
The diagram below in Figure, shows a convex mirror. C is its centre of curvature and F is its focus. (i) Draw two rays from A and hence locate the position of image of object OA. Label the image IB. (ii) State three characteristics of the image.
The image formed by a convex mirror is
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- position of image.
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
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.

Numerical problem.
The radius of curvature of a spherical mirror is 25 cm. Find its focal length.
