Read the following statements :
`S_(1)` : An object shall weigh more at pole than at equator when weighed by using a physical balance.
`S_(2)` : It shall weigh the same at pole and equator when weighed by using a physical balance.
`S_(3)` : It shall weigh the same at pole and equator when weighed by using a spring balance.
`S_(4)` : It shall weigh more at the pole than at equator when weighed using a spring balance.
Which of the above statements is/are correct ?

Options

A. `S_1` and `S_2`
B. `S_1` and `S_4`
C. `S_2` and `S_3`
D. `S_2` and `S_4`

Answer

D

Explanation

Using a physical balance : same weight
Using spring balance : differ weight because value of g vary.