Question

While washing up, a boy lifted a tumbler full of water to the postion shown. Explain why the water stayed in the glass?

Answer 1

where is it "shown"?

Answer 2

For the water to come out of the cup, air would need to come in. But there is no opening through which the air could come in and "push out" the water.

Answer 3

So there is nothing related to pressure difference in here?

Answer 4

I think you will understand it with this diagram.

Answer 5

the pressure exerted by the air is equal to the pressure exerted by 17.6 m of water

Answer 6

I understand that. But there is no air in the tumbler. How am I suposed to explain that?

Answer 7

Of course, "no air" is as good as Vaccum, right?

Answer 8

Yes.

Answer 9

do you still have doubts?

Answer 10

@rajathsbhat
you can figure this out with pressure difference
the hight of water is small and the pressure taht produse is smaler that atmosfairic prasure.
so water does not fall...