An object of heights 1.2cm is placed before a concave mirror of focal lenght 20 cm so that a real image is formed at a distanceof 60 cm from it find the position of an object what will be the height of the image formed
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v = -60cm
f = -20cm
h1 = 1.2cm
1/f = 1/v + 1/u
1/u= -1/60 -1/20
u = -15cm
-v/u = h2/h1
h2 = -7.2cm
f = -20cm
h1 = 1.2cm
1/f = 1/v + 1/u
1/u= -1/60 -1/20
u = -15cm
-v/u = h2/h1
h2 = -7.2cm
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