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#1 (permalink) |
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Within my grasp!
![]() ![]() Join Date: Aug 2002
Location: India
Posts: 212
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Hi,
Figure this out. There r 3 switches in a room corresponding to three bulbs in the terrace. We do not know which switch belongs to which bulb. We can only go to the terrace once.Also, the room is perfectly shielded with nil reflections coming thro'. How do we find out?? I actually don't know the answer.[8)]:o ![]() |
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#2 (permalink) | |
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Within my grasp!
![]() ![]() Join Date: Sep 2002
Location: India
Posts: 164
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Quote:
1. Switch on 1st switch this will lit one bulb 2. Switch on 2nd Switch this will lit 2nd bulb 3. Wait for some time and switch off 2nd bulb. 4. Immediately go up. 5. Touch the two off bulbs, One is hot and one is cold. 6. So 1st Switch corresponds to glowing bulb. 7. 2nd Switch corresponds to Hot bulb. 8. and 3rd Switch Corresponds to cold bulb.... ![]() DKP |
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