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Gabriel’s horn is formed when the curve ____________ is revolved around x-axis for x≥1.

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Gabriel’s horn is formed when the curve ____________ is revolved around x-axis for x≥1.

(a) y = x

(b) y = 1

(c) y = 0

(d) y = 1/x

I got this question in an online interview.

The above asked question is from Volume of Solid of Revolution in portion Integral Calculus of Engineering Mathematics

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Right choice is (d) y = 1/x

Explanation: Gabriel’s horn or Torricelli’s Trumpet is a famous paradox. It has a finite volume but infinite surface area.

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