JEE Mains · Physics · STD 11 - 9.1 fluid mechanics
A hydraulic press can lift \(100\, kg\) when a mass \('m'\) is placed on the smaller piston. It can lift ......... \(kg\) when the diameter of the larger piston is increased by \(4\) times and that of the smaller piston is decreased by \(4\) times keeping the same mass \('m'\) on the smaller piston.
- A \(22500\)
- B \(25600\)
- C \(28900\)
- D \(27225\)
Answer & Solution
Correct Answer
(B) \(25600\)
Step-by-step Solution
Detailed explanation
Using Pascals law \(\frac{100 \times g }{ A _{2}}=\frac{ mg }{ A _{1}}\) \(........(1)\) Let \(m\) mass can lift \(M _{0}\) in second case then \(\frac{ M _{0} g }{16 A _{2}}=\frac{ mg }{ A _{1} / 16}\) \(.........(2)\) \(\left\{\right.\) Since…
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