object 4 cm in size is placed at 25 CM in front of a concave mirror of focal length 15 CM at what distance from the mirror screen replaced to obtain shop image not find the nature and size of the image
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1/f= 1/v+1/u
1/-15= 1/v+1/-25
1/v= -1/15+1/25
1/v= -5/75+3/75
v=75/-2
v= -37.5
1/-15= 1/v+1/-25
1/v= -1/15+1/25
1/v= -5/75+3/75
v=75/-2
v= -37.5
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