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  1. p increases as m increases
  2. p decreases as m increases
  3. p remains constant as m increases
  4.  p increases for some values of m as m increases and then decreases thereafter
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1 Answers

Option 2 : p decreases as m increases

Area of (m + 1)th region = π (rm+12 – rm2)

⇒ πrm2

⇒ πrm2 × (pm2 – 1)

Since area of all the region is constant

pm2 – 1 ∝ 1/rm2

So as m increases rm increases, ∴ pm decreases with the m

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