A barometer kept in an elevator reads 76cm when it is at rest.If the elevator goes up with increasing speed the reading will be
Hello
The correct answer is that the reading will decrease because as the g effective increases then in equation P=HDG as G increases then H should decrease to keep the overall external pressure constant...
In equation p is external pressure which should be same in both cases whether lift is moving or at rest etc...
Reason why g effective increases as the elevator is moving up increasing speed that means with some acceleration so if we go into the elevator frame then then acceleration with which the elevator is moving gets reversed and summed up with gravity which is present from before so the g effective increases...
I gave brief description u can short it and write in your own way ....
Cheers..
The correct answer is that the reading will decrease because as the g effective increases then in equation P=HDG as G increases then H should decrease to keep the overall external pressure constant...
In equation p is external pressure which should be same in both cases whether lift is moving or at rest etc...
Reason why g effective increases as the elevator is moving up increasing speed that means with some acceleration so if we go into the elevator frame then then acceleration with which the elevator is moving gets reversed and summed up with gravity which is present from before so the g effective increases...
I gave brief description u can short it and write in your own way ....
Cheers..