The air pressure inside the can is lower compared to that of outside air pressure.
Explanation:
In general, the air pressure of an already opened can will be the same as the outside pressure.
Since the can is evacuated and remain as vacuum, so there will be no pressure difference in it.
If the can opens, air inside the can push the top and escapes to the outside.
This is due to high pressure experienced outside the cancompare to that of lower pressureinside the can and this may even cause can to collapse itself.
