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प्रश्न
For a given thrust, pressure is more on a surface of large j area.
विकल्प
True
False
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उत्तर
False.
For a given thrust, pressure is less on a surface of large area.
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संबंधित प्रश्न
A plane is in level flight at a constant speed and each of its two wings has an area of 25 m2. If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the plane’s mass. (Take air density to be 1 kg m–3).
How much thrust will be required to exert a pressure of 20,000 Pa on an area of 1 cm2.
Find the pressure 200m below the surface of the ocean if pressure on the free surface of liquid is one atmosphere. (Density of seawater = 1060 kg/m3)
Match the following.
| 1. | Density | hρg |
| 2. | 1 gwt | Milk |
| 3. | Pascal’s law | `"Mass"/" Volume"` |
| 4. | Pressure exerted by a fluid | Pressure |
| 5. | Lactometer | 980 dyne |
The total force exerted by a body normal to the surface is called ______.
Cooking in a place located at a higher altitude is difficult. Why?
Fluids in general are ______.
All flowing substances, both liquids, and gases are called ______.
What is the SI unit of pressure?
Assertion (A): Air gets thinner with increasing altitude.
Reason (R): The atmospheric pressure increases as we go up in mountains.
