Five seconds after Sw 1 is opened, what will the green light be when Sw 1 was previously closed for 40 seconds?

When Sw 1 is closed, current flows through the circuit, allowing the green light to turn ON. If Sw 1 is kept closed for 40 seconds, the circuit operates normally, with the green light consistently lit.

After Sw 1 is opened, a waiting period of five seconds occurs. If the circuit was designed to keep the light illuminated for a brief period even after the switch is opened (possibly due to a capacitor storing energy or an indicator light designed to stay illuminated momentarily), the green light would remain ON during this five-second period.

This phenomenon could occur in certain types of circuits which have components that allow for residual current or controlled discharge, keeping the light illuminated for a short time after the switch is disengaged.

The correct answer captures the principle that under specific conditions, even after the switch is opened, the functionality of the circuit permits the light to remain illuminated during the brief intervals following the disconnection of power.