A concave lens has focal length of 15cm. At what distance should objectfrom the lens be placed so that it forms image at 10 cm forms the lens
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given image distance = 10 cm
which is less then focal length.
so to find object distance using lens formulae
u = vf/v-f. plz use sign convention
150/-5
u = -30 cm
so object is plcaced at 2F
.....
which is less then focal length.
so to find object distance using lens formulae
u = vf/v-f. plz use sign convention
150/-5
u = -30 cm
so object is plcaced at 2F
.....
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