A hydraulic jack is used to compress a spring as shown in fig. stiffne – McqOptions

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1.	A hydraulic jack is used to compress a spring as shown in fig. stiffness of spring is 105 N/m. By applying a pressure ‘p’ in the hydraulic cylinder, the spring gets compressed by 10 mm. The cross-sectional area of the piston is 25 cm2. The applied pressure ‘p’ is
A.	4 × 105 Pascals
B.	40 Pascals
C.	250 Pascals
D.	25 Pascals
Answer» B. 40 Pascals

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