1. 14π R1/2/15Cd × a √(2g)
  2. 14π R3/2/15Cd × a √(2g)
  3. 14π R5/2/15Cd × a √(2g)
  4. 14π R7/2/15Cd × a √(2g)
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1 Answers

Answer: Option 3

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