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JEE · NEET Previous Year Question

$In a well pressure at a point 10 m below the surface of water is (g = 10 ms^{- 2})$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $2 \times 10^{4} Nm^{- 2}$
B $10^{5} Nm^{- 2}$
C $10^{4} Nm^{- 2}$
D $2 \times 10^{5} Nm^{- 2}$

Correct answer: D

Solution

(d) The total pressure at the given depth. = P_{0} + Δ p = P_{0} + ρgh = 1.01 \times 10^{5} + 1000 \times 10 \times 10 = 1.01 \times 10^{5} + 10^{5} = 2.01 \times 10^{5} Nm^{- 2} ≃ 2 \times 10^{5} Nm^{- 2}

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