18. An object 5 cm tall is placed 10 cm in front of a concave mirror of focal length 20 cm, find the
position, nature and size of the image formed.
pls solve its urgent
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An object 5cm tall is placed in front of a spherical mirror at 20 cm distance from the mirror. If virtual image of 10 cm tall was formed behind the mirror, find the focal length of the mirror and the position of the images. Name the type of mirror used
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