Saved Bookmarks
| 1. |
In barometer, the given space labelled as A, above the mercury is(a) Vacuum(b) Filled with Air(c) Filled with water(d) Filled with Gas |
|
Answer» Right choice is (a) Vacuum The explanation is: To correctly measure the atmospheric pressure, the space above the mercury level in a barometer is essentially vacuum. Otherwise, the fluid in the space will exert a pressure on the mercury surface. |
|