An object of size 7.0 cm is placed at 27cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharp focussed image can be obtained ? Find the size and the nature of the image .
please brother and sister please give me correct answers.............
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sister
apko 2 loko se kya problem hai
onki id name bato Tu mai bat karta ho
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