Three Switches Outside A Windowless Room

The second switch will be connected to the light that is on the first switch will be connected to the light with the warm bulb and the third switch. How can you determine which switch is connected to which bulb if you are only allowed to enter the room once. Then turn the second switch off and enter the room after half a minute.

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Each bulb is switched off at present.

Three switches outside a windowless room.

The warmer of the two. A windowless room contains three identical light fixtures each containing an identical light bulb or light globe. Turn the first two switches on and leave them on for 2 minutes. Three switches outside a windowless room are connected to three light bulbs inside the room.

Then switch on the second switch and enter the room. Switch on the first switch leave it for a minute and then switch it off again. Each light is connected to one of three switches outside of the room. Switch on the first switch leave it for a minute and then switch it off again.

Feel the two bulbs that are not lit. The second switch will be connected to the. You are outside the room and the door is closed. Then switch on the second switch and enter the room.

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