Advertisements
Advertisements
प्रश्न
A man exerts same pressure on the ground whether he is standing or he is lying.
विकल्प
True
False
Advertisements
उत्तर
False.
A man exerts different pressure on the ground whether he is standing or he is lying.
APPEARS IN
संबंधित प्रश्न
In problem 10.9, if 15.0 cm of water and spirit each are further poured into the respective arms of the tube, what is the difference in the levels of mercury in the two arms? (Specific gravity of mercury = 13.6)
1 kgf = .............. (nearly).
The unit of thrust is ..........
Pressure is reduced if .................... increases.
How is the thrust related to pressure?
Name two factors on which the pressure on a surface depends.
Calculate the pressure in pascal exerted by a force of 300 N acting normally on an area of 30 cm2.
The figure shows a brick of weight 2 kgf and dimensions 20 cm × 10 cm × 5 cm placed in three different positions on the ground. Find the pressure exerted by the brick in each case.
Water flows through a horizontal tube of variable cross section. The area of cross section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A, find (a) the speed of water at A, (b) the speed of water at B and (c) the pressure difference PA − PB.
Cooking in a place located at a higher altitude is difficult. Why?
