Question

Focal length of a convex lens is 20 cm. How far should we place the object in front of this lens to get image of
and figure 1.18 (f).
NUMERICAL PROBLEMS FOR SELF ASSESSMENT
double size as that of object?
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Answer 1

Answer:

Scarcity is the limited availability of a commodity, which may be in demand in the market or by the commons. Scarcity also includes an individual's lack of resources to buy commodities. The opposite of scarcity is abundance

Explanation:

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