GK Physics 8

General Knowledge – Physics

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1. Echoes are due to


2. An air-conditioning system regulates


3. Select the one which is not a mixture.


4. Water boils at a lower temperature on the hills because


5. Solder is an alloy of


6. Two resistance of 3? and 6? respectively are connected to a battery of 18V in series. The current passing through the circuit is


7. The force that causes a spring to eventually return to its normal length is called


8. The temperature which has the same reading on both Fahrenheit and Celsius scales is


9. When the length of a pendulum in a clock is increased, then


10. Refrigerators keep food unspoiled because


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