Question

Will a body weigh more in air or in vacuum when weighed with a spring balance?Give a reason for your answer.

ICSE Class 9 Physics Chapter Upthrust in Fluids,Archimedes Principle and Floataion

Answer 1

Body will weigh more in air than in vacuum because in vacuum consideration of external forces are nil.

Answer 2

Dear Student,

◆ Answer -

A body will weigh more in vacuum than in air.

● Explaination -

• When a body is weighed with spring balance in air, air resistance exerts some opposing force (buoyant force) on it.
• Thus, measured weight will be less than its actual weight.
• On the other hand, there's no such force acting on body in vacuum to reduce its weight.
• Hence, a body will weigh more in vacuum than in air.

Best luck dear...