Home
Class 8
PHYSICS
Statement 1: A straw rubbed with paper a...

Statement 1: A straw rubbed with paper attracts another straw.
Statement 2: Electrostatic force is always defined as the force exerted by a charged body on an uncharged body.

A

Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

B

Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

C

Statement 1 is true but statement 2 is false.

D

Both statements 1 and 2 are false.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements given in the question, we will evaluate each statement separately and determine their validity. ### Step 1: Evaluate Statement 1 **Statement 1:** A straw rubbed with paper attracts another straw. - When a straw is rubbed with paper, it becomes charged due to the transfer of electrons. This process is known as triboelectric charging. - The charged straw can attract another straw that may not be charged or may have a different charge. This is due to the electrostatic force acting between charged objects. **Conclusion for Statement 1:** This statement is true because a charged object can attract another object, whether it is charged or neutral. ### Step 2: Evaluate Statement 2 **Statement 2:** Electrostatic force is always defined as the force exerted by a charged body on an uncharged body. - The electrostatic force is the force of attraction or repulsion between charged bodies. It is not limited to the interaction between a charged body and an uncharged body. - Charged bodies can exert forces on each other, whether they are like charges (repulsion) or unlike charges (attraction). Therefore, the definition provided in Statement 2 is too restrictive. **Conclusion for Statement 2:** This statement is false because electrostatic force can act between two charged bodies as well. ### Final Conclusion - **Statement 1 is true.** - **Statement 2 is false.**

To analyze the statements given in the question, we will evaluate each statement separately and determine their validity. ### Step 1: Evaluate Statement 1 **Statement 1:** A straw rubbed with paper attracts another straw. - When a straw is rubbed with paper, it becomes charged due to the transfer of electrons. This process is known as triboelectric charging. - The charged straw can attract another straw that may not be charged or may have a different charge. This is due to the electrostatic force acting between charged objects. ...
Promotional Banner

Topper's Solved these Questions

  • NSO QUESTION PAPER 2019-20 SET B

    SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|2 Videos
  • SAMPLE PAPER 4 (CLASS VIII)

    SCIENCE OLYMPIAD FOUNDATION |Exercise SECTION C - SCIENCE|3 Videos

Similar Questions

Explore conceptually related problems

Fill in the blanks in the following statements: A charged body______an uncharged body towards it.

Statement 1: A body under equilibrium must be at rest. Statement 2: Equilibrium means net force zero.

The force exerted by two charged bodies on one another obey Coulomb's law provided that

Statement- 1: Motion of a charged particle under the action of a magnetic field alone is always with constant speed. Statement- 2 : The direction of magnetic force is always perpendicular to the direction of motion of the charged particle.(1) Both Statements are true (2) Both Statements are false (3) Statement-1is true but Statement-2is false (4) Statement-1is false but Statement-2is true

The force of attraction between two charged bodies depend on

Statement 1:Nylon fibres are stronger than terylene fibres. Statement 2:Intermolecular forces of attraction in terylene are H -bonding.

Statement-1 : If the net external force on the body is zero then its acceleration is zero. Statement-2 : Acceleration does not depend on force

Statement -1: Gravitational force between two particles is negligibly small compared to the electrical force. Statement-2 :The electrical force is experienced by charged particles only.

SCIENCE OLYMPIAD FOUNDATION -NSO QUESTION PAPER 2020-21 SET A-SCIENCE
  1. Which of the following statements is true?

    Text Solution

    |

  2. Statement 1: A straw rubbed with paper attracts another straw. State...

    Text Solution

    |

  3. Which of the following optical devices can produce real images?

    Text Solution

    |

  4. There are three long planks, each of length 5 meters. Three identical ...

    Text Solution

    |

  5. Consider the list of terms given below. (i) Tsunami (iii) Floods ...

    Text Solution

    |

  6. Which of the following statements is/are correct regarding artificial ...

    Text Solution

    |

  7. Statement 1: When an electric current flows through a wire, it behaves...

    Text Solution

    |

  8. Sohan connects three identical bulbs X, Y and Z as shown in the figure...

    Text Solution

    |

  9. All hot bodies radiate heat. When this heat falls on some other object...

    Text Solution

    |

  10. The distance-time graph of the motion of a toy car is shown in the fig...

    Text Solution

    |

  11. Two plane mirrors are inclined at some angle theta. If a ball is place...

    Text Solution

    |

  12. Two mirrors I and II are placed at right angle to each other as shown ...

    Text Solution

    |

  13. Which of the following shows a pleasant sound?

    Text Solution

    |

  14. If the temperature of an object is -40^@F, then this temperature on th...

    Text Solution

    |

  15. For the myopic eye, the defect is corrected by

    Text Solution

    |

  16. Study the given figures carefully. Select the correct observation...

    Text Solution

    |

  17. Fill in the blanks by choosing an appropriate option. An LED may be ...

    Text Solution

    |

  18. A block of mass 10 kg is suspended through two light spring balances a...

    Text Solution

    |