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How are metals used as semiconductors re...

How are metals used as semiconductors refined ? What is the principle of the method used like germanium, silicon etc. ?

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Used in.the construction of centrifugal governors.
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ICSE-CIRCULAR MOTION -MODULE 1 (SHORT ANSWER QUESTIONS)
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  3. Why does an aeroplane tilt while making.a curved flight ?

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  4. Assertion When a car takes a circular turn on a horizontal road, then ...

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  5. Find the acceleration of a particle placed on the surface of the earth...

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  6. Why does mud fly off a rapidly turning wheel ?

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  7. "A mass is attached to one end of a spring and by holding the other en...

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  8. At what point does a pilot in an aeroplane appear to be heaviest while...

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  9. An electric kettle has two coils. When one of these is switched on, th...

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  10. Explain the reason of separation of cream from milk.

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  11. A motor cyclist rides around the well with a round vertical wall and d...

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  12. What is meant 'banking of the road' ?

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  13. On what values does the angle of banking depend ?

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  14. What is meant by banking of rails ? What is its purpose ?

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  15. Consider an infinite distribution of point masses (each of mass m) pla...

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  16. What is the conical, pendulum ? Why is it called so ?

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  17. How are metals used as semiconductors refined ? What is the principle ...

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  18. Where does a body weigh more – at the surface of the earth or in a min...

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  19. Why it is more difficult to rotate a stone by tieing it to a longer st...

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  20. A cyclist bends while taking turn to

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