A windowless room contains three identical light fixtures each containing an identical light bulb or light globe.
Three switches outside a windowless room.
The warmer of the two.
Then switch on the second switch and enter the room.
Feel the two bulbs that are not lit.
How can you determine which switch is connected to which bulb if you are only allowed to enter the room once.
Three switches outside a windowless room are connected to three light bulbs inside the room.
Each bulb is switched off at present.
The second switch will be connected to the.
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.
You are outside the room and the door is closed.
Then turn the second switch off and enter the room after half a minute.
Turn the first two switches on and leave them on for 2 minutes.