Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A barometer kept is an elevator reads 76cm when the elevator is accelerating upwards. The most likely pressure inside the elevator (in cm of Hg) is 74 75 76 77

A barometer kept is an elevator reads 76cm when the elevator is accelerating upwards. The most likely pressure inside the elevator (in cm of Hg) is
  • 74
  • 75
  • 76
  • 77

Grade:11

1 Answers

Arun
25763 Points
2 years ago
 

under normal conditions when the elevator is accelerating upwards the reading in the barometer will be less than 76cm (air pressure is same as external) but as acc. to question the pressure is 76 cm means that the air is applying more pressure to lift the liquid to a height of 76cm.so the air pressure in the lift is higher than the normal(76 cm).

the liqiud becomes heavier m*(g+a) when the lift accelerating upwards. so it requires more more pressure from the air onto the liquid to rise at the height of 76 cm.

 

Hence answer is 77

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free