33.
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66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:
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Answer:
Answer: Option A
Explanation:
Let the length of the wire be h.
Radius =
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1
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mm
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=
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1
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cm.
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Then,
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2
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20
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22
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x
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1
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x
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1
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x h = 66.
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7
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20
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20
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h =
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66 x 20 x 20 x 7
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= 8400 cm = 84 m.
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22
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