$A$ spring balance and a physical balance are kept in a lift. In these balances,equal masses are placed. If the lift starts moving upwards with constant acceleration,then:
- AThe reading of the spring balance will increase and the equilibrium position of the physical balance will be disturbed.
- BThe reading of the spring balance will remain unchanged and the physical balance will remain in equilibrium.
- CThe reading of the spring balance will decrease and the physical balance will remain in equilibrium.
- DThe reading of the spring balance will increase and the physical balance will remain in equilibrium.
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