Home
Class 11
PHYSICS
Sand is dusted to the railway tracks dur...

Sand is dusted to the railway tracks during rainy season to .

A

make it always wet

B

increase friction

C

to reduce consumption of fuel

D

make it always dry

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise LEVEL -I (C.W)|47 Videos

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise LEVEL -II (C.W)|71 Videos

  • NEWTONS LAWS OF MOTION

    NARAYNA|Exercise PASSAGE TYPE QUESTION|6 Videos

  • MOTION IN A STRAIGHT LINE

    NARAYNA|Exercise Level 2 H.W|29 Videos

  • OSCILLATIONS

    NARAYNA|Exercise EXERCISE - IV|41 Videos

Similar Questions

Explore conceptually related problems

Read the statements given below and identify the concepts explained in them. Name the optical phenomenon behind occurrence of circles made of seven colours on the roads during rainy season.

Velvety green beds appear on the walls during rainy season. Give reason.

Statement 1: It becomes difficult to open and shut the wooden doors and windows during rainy season. Statement 2: Wooden doors and windows imbibe water in rainy season and thus their volume is increased.

Why do frogs croak in the rainy season ?

How is aluminium used to join railway tracks?

As many as ten coaches of a passenger train have derailed and blocked both pairs of the railway tracks. Courses of action I. The railway authorities should immediately send men and equipment to the spot to clear the railway tracks. II. All the trains running in both the directions should be diverted to other routes.

Wooden doors swell up and get stuck during rainy season due to

NARAYNA-NEWTONS LAWS OF MOTION-C.U.Q
  1. Theoretically which of the following are best lubricants ? .

    Text Solution

    |

  2. A block 'B' rests on 'A' A rests on a horizontal surface 'C' which is ...

    Text Solution

    |

  3. Sand is dusted to the railway tracks during rainy season to .

    Text Solution

    |

  4. With increase of temperature the friction force acting between two sur...

    Text Solution

    |

  5. If we imagine ideally smooth surfaces and it they are kept in contact,...

    Text Solution

    |

  6. If man is walking direction of friction is .

    Text Solution

    |

  7. Aeroplanes are streamlined to reduce .

    Text Solution

    |

  8. The limiting friction between two surface does not depend

    Text Solution

    |

  9. To avoid slipping while walking on ice, one should take smaller steps ...

    Text Solution

    |

  10. In order to stop a car in shortest disatance on a horizontal road one ...

    Text Solution

    |

  11. A body rests a rough horizontal plane A force is applied to the body d...

    Text Solution

    |

  12. A lift is moving down with an acceleration equal to the acceleration d...

    Text Solution

    |

  13. A body is struck to the front part of the truck. The coefficient of fr...

    Text Solution

    |

  14. When a bicycle is motion the force of friction exerted by the ground o...

    Text Solution

    |

  15. A body of mass M is applying horizontal force to slide a box of mass M...

    Text Solution

    |

  16. When a person walks on a rough surface .

    Text Solution

    |

  17. The maximum speed of a car on a curved path of radius 'r' and the coef...

    Text Solution

    |

  18. The angle which the rough inclined plane makes with the horizontal whe...

    Text Solution

    |

  19. A body of mass M is placed on a rough inclined plane of inclination th...

    Text Solution

    |

  20. It is easier to pull a lawn roller than to push it because pulling .

    Text Solution

    |