An object is placed 20cm from a concave mirror of focal l...
An object is placed 20cm from a concave mirror of focal length 15cm. Calculate the linear magnification of the image formed
0.5
1.5
2.0
3.0
Correct answer is D
1U+1V=1F
1V=1F−1U
1V=115−120
1V=4 - 360
1V=160
V = 60cm
M = VU=6020
M = 3.0cm
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