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प्रश्न
Define one pascal (Pa), the S.I. unit of pressure.
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उत्तर
One pascal (Pa) is the SI unit of pressure, defined as the pressure exerted by a force of one newton (N) acting uniformly over an area of one square meter (m2). This relationship is expressed as 1 Pa = 1 N/m2.
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संबंधित प्रश्न
Explain the principle of a hydraulic machine. Name two devices which work on this principle.
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One Pascal is equal to
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The following figure shows a manometer containing a liquid of density p. The limb P of the manometer is connected to a vessel V and the limb Q is open to atmosphere. The difference in the levels of liquid in the two limbs of the manometer is h as shown in the diagram. The atmospheric pressure is P0.
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