Question

39. What will be the magnification of the lens, when an object is placed at a
distance of 60 cm from a concave lens of focal length 30 cm?
A. 1
3
B.1
5
C. 1
7
D. 1
9
E. 1
11
mole nf a gas at 0°C and a pressure​

Answer 1

Answer:

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Answer 2

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