Question

Give reasons : when a card is placed on a glass filled with water and are inverted together the water does not spill. why ?

please answer ....urgently​

Answer 1

Step-by-step explanation:

The answer has to do with air pressure.

Any object in air is subject to pressure from air molecules colliding with it. At sea level, the mean air pressure is one "atmosphere" (=101,325 Pascals in standard metric units). This air pressure is pushing up on the card from below, while the water is pushing down on the card from above. The force on the card is just the pressure times the area over which the pressure is applied.

Answer 2

Step-by-step explanation:

this is because the atmospheric air exerts a pressure on the card from outside. As there is high pressure outside and low pressure inside, so as a result of atmospheric pressure the card does not fall.