Suppose there are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operates the bulb. You can turn the switches on and off as many times as you wish (they are all off to begin with), but may only enter the room once. There is no one there to help you. The door to the room is closed, and there are no windows, so you cannot see inside. How can you discover which switch operates the bulb?
Submitted by: AdministratorDo the following steps:
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
☛ 1. Turn ON two switches, and leave one OFF.
☛ 2. Wait a few minutes.
☛ 3. Turn one switch from ON to OFF. One is now ON and two are OFF
☛ 4. Enter the room. - If the light is ON, it is controlled by the switch you left ON. - If the light bulb is OFF, touch it. If it is warm it is controlled by the switch you turned ON and OFF. If it is cold, it is controlled by the switch you never turned on.
Submitted by: Administrator
Read Online Wireless Physical Layer Job Interview Questions And Answers
Top Wireless Physical Layer Questions:
| ☺ | Do you have good computer skills? |
| ☺ | What makes you right for this position? |
| ☺ | What do you think is your greatest weakness? |
| ☺ | How would you rate your communication and interpersonal skills for this job As Wireless Physical Layer? |
| ☺ | What are your personal skills which make you a candidate for the position As Wireless Physical Layer? |
Top Law And Enforcement Categories
| ☺ | Legal Counsel Interview Questions. |
| ☺ | Business Lawyer Interview Questions. |
| ☺ | Executive Recruiter Interview Questions. |
| ☺ | Family Lawyer Interview Questions. |
| ☺ | Real Estate Lawyer Interview Questions. |
