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Application of Derivatives question

2022 · 25 Jun · Shift 2 · Q30
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  5. /2022 · 25 Jun · Shift 2 · Q30

Application of Derivatives question

2022 · 25 Jun · Shift 2 · Q30

JEE MainMathematicsApplication of DerivativesMCQ+4 / −1
Water is being filled at the rate of 1 cm3 / sec in a right circular conical vessel (vertex downwards) of height 35 cm and diameter 14 cm. When the height of the water level is 10 cm, the rate (in cm2 / sec) at which the wet conical surface area of the vessel increases is
  1. A
    5
  2. B
    215{{\sqrt {21} } \over 5}521​​
  3. C
    265{{\sqrt {26} } \over 5}526​​
  4. D
    2610{{\sqrt {26} } \over {10}}1026​​
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