Advertisements
Advertisements
प्रश्न
Define one pascal (Pa), the S.I. unit of pressure.
Advertisements
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.
संबंधित प्रश्न
Explain the working of a hydraulic brake with a simple labelled diagram.
66640 Pa pressure is exerted by 0.50 m vertical column of a liquid. If g = 9.8 Nkg−1, calculate the density of the liquid.
Select the correct option.
Pressure at a point inside a liquid does not depend on
At a given place, a barometer records 70 cm of Hg. If the mercury in the barometer is replaced by water, what would be resulting in reading? (Density of Hg = 13600 kg/m3; Density of water = 1000 kg/m3)
How does the liquid pressure on a diver change according to the following condition:
When the driver moves horizontally
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.
(i) What is the pressure on the liquid surface in the limb Q?
(ii) What is the pressure on the liquid surface in the limb P?

For what purpose is the acid battery hydrometer used?
