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Puzzle from Infosys
#1


there are 3light bulbs inside a room and their switches outside the room. You can enter the room only once and you need to exactly find which switch is for which bulb." 

you need not be a student of EE to solve this.

think think. . . 

"Literary education is of no value, if it is not able to build up a sound character"


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#2

First put the first switch for half an hour, then put the second switch and go inside the room.
The bulb which glows is for second switch. Now touch other 2 bulbs. One which is hot is for first switch and the other bulb is for third switch..
Right??

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#3


Ya right..:-)
there is no need to keep the bulb ON for half hour... Even 5-10min is ok...
(after all we are electrical engineers; save energy ;-))

"Literary education is of no value, if it is not able to build up a sound character"


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