1.

A body of mass 2 kg is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity ?g?, the reading on the spring balance will be                          [NCERT 1977]

A.                         2 kg                 
B.                         \[(4\times g)\,kg\]            
C.                         \[(2\times g)\,kg\]            
D.                           Zero            
Answer» E.


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