A spring balance and a physical balance are kept in a lift. In these balances equal masses are placed. If now the lift starts moving upwards with constant acceleration, then

The reading of spring balance will increase and the equilibrium position of the physical balance will disturb

The reading of spring balance will increase and the physical balance will remain in equilibrium

The reading of spring balance will decrease and physical balance will remain in equilibrium

The reading of spring balance will remain unchanged and physical balance will remain in equilibrium