an object is placed at a distance of 30cm from a concave lens of focal length 15cm.list 4 characteristics - size, position etc of the image
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an object is placed at a distance of 30cm from a concave lens of focal length 15cm.list 4 characteristics - size, position etc of the image
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1/v = 1/f -1/u
= 1/-15 - 1/-30
= -1/15 + 1/30
= -2+1/30 =-1/30
1/v = -1/30
v = -30 cm
size of the image = -30 cm
nature = real & inverted
position = behind the focus