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CGP EDU Academic Team
Published on: September 12, 2026
A piston of cross-section area 100 cm 2 is used in a hydraulic press to exert a force of 10 7 dynes on the water. The cross-sectional area of the other piston which supports an object having a mass 2000 kg. is
Text Solution
Verified by ExpertsThe correct answer is:
C
$P_{1} = P_{2} \Rightarrow \frac{F_{1}}{A_{1}} = \frac{F_{2}}{A_{2}} \Rightarrow \frac{10^{7}}{10^{2}} = \frac{2000 \times 10^{3} \times 10^{3}}{A_{2}}$
∴ ∴ $A_{2} = 2 \times 10^{4} \mathrm{cm}^{2}$ $(g = 980 \approx 10^{3} \mathrm{cm}/\mathrm{s}^{2})$
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