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General Knowledge - Physics


1. The colour of light which travels through glass with the minimum speed is


2. Which of the following is used in semi-conductors?


3. The special filters used to reduce pollutants from the exhaust of a car are called


4. Refrigerators keep food unspoiled because


5. In resistance heating, highest working temperature is obtained from heating elements made of...



6. Which one of the following allotropes of carbon is used for cutting and drilling?


7. 60 is equal to


8. Transistors used in electronic equipments are mostly made of


9. The device used for converting A. C. from higher voltage to lower voltage or vice versa is called


10. Among the following statement which is the false?


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