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Q.

An object is placed at a distance of 40cm in front of a concave mirror of focal length 20cm the image produced is

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a

real inverted and of the same size as the object.

b

real and erect

c

virtual and inverted  

d

real inverted and diminished

answer is D.

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Detailed Solution

u = -40 cm
f = -20 cm
u is equal to 2f so image is real inverted and same as object.

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