optics- An object is placed 3cm from a concave mirror whose focal length is 12cm ,where the image is formed and what is its nature?
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Image is formed at back of the concave mirror. It will be large from the object. It will be a virtual image,Upright.
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With help mirror formula
1/f = 1/u +1/v
V (image ) = -4
It is real and inverted and same side of mirror
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