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Case 2
when object is moved towards lens by 20cm
u= -10cm
f = 15cm
by lens formula,
1/v = 2-3/30
v= -30cm
hope it helps.
when object is moved towards lens by 20cm
u= -10cm
f = 15cm
by lens formula,
1/v = 2-3/30
v= -30cm
hope it helps.
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