Home
Class 12
PHYSICS
A comb run through one's dry hair attrac...

A comb run through one's dry hair attracts small bits of paper. This is due to

A

comb is a good conductor

B

paper is a good conductor

C

the atoms in the paper get polarised by the charged comb

D

the comb possesses magnetic properties.

Text Solution

Verified by Experts

The correct Answer is:
C
The comb get charged and induces opposite charges in paper. The field due to the charges in the comb, polarises the atoms in the paper. Finally it attracts the paper because opposite charges are induced.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2005

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|59 Videos

  • KARNATAKA CET 2007

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

Why does a comb attract bits of paper when it is rubbed against the hair ?

Dry wooden stakes, if driven into a small crack in a rock and then soaked, can develop enough pressure to split the rock . This pressure is developed due to

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. (a) Estimate the line power loss in the form of heat. (b) How much power must the plant supply, assuming there is negligible power loss due to leakage? (c) Characterise the step up transformer at the plant.

Which one of the following conditions through harmful in itself, is also a potential saviour from mosquito borne pernicious malaria due to Plasmodium falciparium?

A calcite crystal is placed over a dot on a piece of paper and rotated . On seeing through the calcite , one will be

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2006-PHYSICS
  1. A gaussian sphere encloses an electric dipole within it. The total flu...

    Text Solution

    |

  2. A parallel plate air capacitor has a capacitance C. When it is half fi...

    Text Solution

    |

  3. A comb run through one's dry hair attracts small bits of paper. This i...

    Text Solution

    |

  4. The top of the atomosphere is about 400 kV with respect to the surface...

    Text Solution

    |

  5. The specific charge of a proton is 9.6xx10^(7)C//kg. The specific char...

    Text Solution

    |

  6. When light of wavelength 300 nm falls on a photoelectric emitter, phot...

    Text Solution

    |

  7. White light is passed through a dilute solution of potassium permangan...

    Text Solution

    |

  8. If lambda(1) and lambda(2) are the wavelengths of the first members of...

    Text Solution

    |

  9. Activity of a radioactive sample decreases to (1//3)^(rd) of its origi...

    Text Solution

    |

  10. Identify the operation performed by the circuit given below.

    Text Solution

    |

  11. The working of which of the following is similar to that of a slide pr...

    Text Solution

    |

  12. In a transistor, the collector current is always · less then the emitt...

    Text Solution

    |

  13. A transparent cube of 0.21 m edge contains a small air bubble. Its app...

    Text Solution

    |

  14. White light is incident on one of the refracting surface of a prism o...

    Text Solution

    |

  15. For a given lens, the magnification was found to be twice as large whe...

    Text Solution

    |

  16. To fish under water, viewing obliquely a fisherman standing on bank of...

    Text Solution

    |

  17. A thin prism P(1) with angle 4^(@) and made from a glass of refractive...

    Text Solution

    |

  18. If white light is used in the Newton’s rings experiment, the colour ob...

    Text Solution

    |

  19. Specific rotation of suguar solution is 0.5 deg m^(2)//kg.200 kgm^(-3)...

    Text Solution

    |

  20. A simple pendulum has a length l and the mass of the bob is m. The bob...

    Text Solution

    |