- A0.5
- B20
- C8
- D2
Step-by-Step Solution
The volume of metal does not change. Rod volume = π × π . The wire has radius 1 mm = 0.1 cm, so π × π gives cm = 2 m.
Answer: D) 2
A metal rod of diameter 1 cm and length 8 cm is drawn out into a wire of uniform diameter 2 mm. Find the length of the wire in metres.
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