Home
Class 8
PHYSICS
ASSERTION&REASON: Mark the correct choic...

ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives are used to cut the vegetables.Reason: Sharp edges exert more presure.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true,but the reason is not the correct explanation of the assertion.

C

If the assertion is true,but the reason is fasle.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Force and Pressure

    SURA PUBLICATION|Exercise Exercise|56 Videos

  • Force and Pressure

    SURA PUBLICATION|Exercise Exercise|56 Videos

  • Electricity

    SURA PUBLICATION|Exercise Example|63 Videos

  • Heat

    SURA PUBLICATION|Exercise Example|68 Videos

Similar Questions

Explore conceptually related problems

ASSERTION&REASON: Mark the correct choice as: Assertion: Broad straps are used in bags.Reason: Broad straps last for long life.

ASSERTION&REASON: Mark the correct choice as: Assertion : Water strider slides easily on the surface of water.Reason: Water strider experiences less buoyant force.

Assertion & Resson:Direction: Mark the correct choice as: Assertion: A system can be converted from one state to another state. Reason: If takes place when the temperature of the system is constant.

Assertion and Reason. Mark the correct choice as : Assertion: The pressure at the bottom of the sea is lesser then that near the surface. Reason: The pressure exerted by a liquid depends upon the depth of the liquid and density of the liquid .

Assertion & Reason: Direction Mark the correct choice as Assertion: The SI system of units is the suitable syatem for measurements. Reason: The SI unit of temperature is kelvin.

Assertion & Reason : Direction : Mark the correct choice as : Assertion : Two persons on the surface of moon cannot talk to each other. Reason : There is no atmosphere on moon.

Assertion & Reason : Direction : Mark the correct choice as : Assertion : People struvk by lightning receive a severe electrical shock. Reason : Lightning carries carries very high voltage.

Assertion and Reason. Mark the correct choice as : Assertion: There is danger of a vehicle skidding on a wet road. Reason:The tyres of the vehicle lose their grip on the road due to increase in friction due to presrnce of water on the road..

Assertion and Reason. Mark the correct choice as: Assertion: Temperature is a physical quantity. Reason: Thermometers is the gegree of hotness or coldness of a body.

Assertion and Reason. Mark the correct choice as:Assertion:Temperature is the measure of the heat energy.Reason:Energy is the capacity to do work.

SURA PUBLICATION-Force and Pressure-Example
  1. A stone weighs 500 N.Calculate the pressure exerted by it if it marke...

    Text Solution

    |

  2. In a hydraulic life, the surface area of the input piston is 10cm^. Th...

    Text Solution

    |

  3. ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives ...

    Text Solution

    |

  4. ASSERTION&REASON: Mark the correct choice as: Assertion: Broad straps ...

    Text Solution

    |

  5. ASSERTION&REASON: Mark the correct choice as: Assertion : Water stride...

    Text Solution

    |

  6. Give two example to verify that a force tends to change the shape of a...

    Text Solution

    |

  7. Give two example to verify that a force tends to change the static con...

    Text Solution

    |

  8. What do you feel when you thouch a nail immediately after it is hammer...

    Text Solution

    |

  9. How does the friction arise between the surfaces of two bodies in rela...

    Text Solution

    |

  10. Name two instrument, which help to measure the pressure of a Huid.

    Text Solution

    |

  11. Define one atmosphere.

    Text Solution

    |

  12. Why are heavy bags provided with broad straps?

    Text Solution

    |

  13. How does surface help a plant?

    Text Solution

    |

  14. Which has greater viscosity,oil or honey? Why?

    Text Solution

    |

  15. Define friction.Give two exemples of the utility of friction In day to...

    Text Solution

    |

  16. Write down three ways of minimising friction.

    Text Solution

    |

  17. Why is a ball bearing used in a cycle hub?

    Text Solution

    |

  18. Write down three applications of Pascal's law.

    Text Solution

    |

  19. "Friction is a necessary evil"-explain.

    Text Solution

    |

  20. Give the different types of friction and explain each with an example.

    Text Solution

    |