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When a plastic comb is rubbed with dry h...

When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this porcess :

A

the hair lose some positive protons

B

the hair gain some positive protons

C

the hair gain some negative electrons

D

the hair gain some negative electrons

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The correct Answer is:
A
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LAKHMIR SINGH & MANJIT KAUR-SOME NATURAL PHENOMEAN-EXERCISE
  1. The waves generated by earthquake tremors are called :

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  2. When an object gets negetively charged by the process of friction, the...

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  3. The device used of detecting charge (positive or negative ) on an obje...

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  4. A Charged object attracts an uncharged object by producing opposite ch...

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  5. A lightning conductor is a device which transfers :

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  6. When a plastic comb is rubbed with dry hair, the hair get positively c...

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  7. Which of the following parth of the earth is made up of molten iron ?

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  8. Which of the following area of India is the most threatened by earthqu...

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  9. The place inside the earth's crust where the earthquake is generated ...

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  10. An inflated rubber balloon is rubber with a woollen cloth whereas a ba...

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  11. Lightning can ever burn up tree. Lightning contains a tremendous amoun...

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  12. The tremendous electric charge in the armosphere which produce sheet l...

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  13. Explain why, a charged balloon is repelled by another charged balloon ...

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  14. Explain why, a glass rod can be charged by rubbing when had by hand bu...

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  15. A glass rod is rubbed with a silk cloth and inflated rubber balloon is...

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  16. A glass rod is rubbed with a silk cloth and inflated rubber balloon is...

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  17. What will you observe when the metal top of an electroscope is touched...

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  18. What will you observe when the metal top of an electroscope is touched...

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  19. An earthquake measures 3 on Richter scale : Would it be recorded by ...

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  20. An earthquake measures 3 on Richter scale : Is it likely to cause m...

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