Home
Class 11
PHYSICS
Assertion : Velocity , cannot be added t...

Assertion : Velocity , cannot be added to speed
Reason : Both velocity and speed have same dimensions

A

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

B

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

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
b
The dimensions of velocity and speed are same which is `[M^(0)L^(1)T^(-1)]`. They can not be added to each other
Promotional Banner

Topper's Solved these Questions

  • UNIT, DIMENSION AND ERROR ANALYSIS

    A2Z|Exercise AIIMS Questions|22 Videos

  • THERMAL PROPERTIES OF MATTER

    A2Z|Exercise Chapter Test|30 Videos

  • VECTORS

    A2Z|Exercise Chapter Test|29 Videos

Similar Questions

Explore conceptually related problems

Assertion: Force can be added to pressure. Reason: Force and pressure have same dimensions.

Assertion: Force can be added to pressure. Reason: Force and pressure have same dimensions.

Assertion : Pressure can be subracted from pressure gradient. Reason : Because both have the same dimensions.

Assertion: Both velocity and pseed have same dimesions. Reason: Velocity cannot be added to speed.

Assertion : A body cannot have energy without possessing momentum but it can have momentum without having energy. Reason : Momentum and energy have same dimensions.

The dimensions of velocity gradient are the same as that of

Assertion : 'Light year' and 'Wavelength' both measure distance. Reason : Both have dimensions of time.

Assertion: An object can have constant speed but variable velocity. Reason: Speed is a scalar but velocity is a vector quantity.

Assertion : The rms velocity and most probable speeds of the molecules in a gas are same. The Maxwell distribution curve for the speed of the molecules in a gas is symmetrical.

A2Z-UNIT, DIMENSION AND ERROR ANALYSIS-Chapter Test
  1. A body travels uniformly a distance of ( 13.8 +- 0.2) m in a time (4.0...

    Text Solution

    |

  2. The fundamental unit of quantity of metter is

    Text Solution

    |

  3. If equation int (dt)/(sqrt(3a - 2t^(2))) = a^(x) sin ^(-1) ((r^(2))/(a...

    Text Solution

    |

  4. Drift speed of electron inside the metallic conductor is v(A) = eE^(y)...

    Text Solution

    |

  5. If unit of mass become 2 times the unit of length becomes 4 time and t...

    Text Solution

    |

  6. A stone lying at rest in a river The minimum mass of stone, m = krhov^...

    Text Solution

    |

  7. A student writes four different expression for the displacement y in a...

    Text Solution

    |

  8. If the unit of velocity is run , the unit of time is second and unit o...

    Text Solution

    |

  9. If force F velocity V and time T are taken as fundamental units, find ...

    Text Solution

    |

  10. A student determins a dimensionless quantities B = (E^(n))/(2 epsilon(...

    Text Solution

    |

  11. To find the distance d over which a signal can be seen clearly in fogg...

    Text Solution

    |

  12. Acceleration due to gravity on the surface of the earth is g = (GM)/(R...

    Text Solution

    |

  13. During measurement of kinetic energy T , The percentage error in mean...

    Text Solution

    |

  14. A physical quantity x depends on quantities y and z as follows : x = ...

    Text Solution

    |

  15. Which of the following statement is incorrect regarding significant fi...

    Text Solution

    |

  16. If momentum (p), area (A) and time(t) are taken to be fundamental quan...

    Text Solution

    |

  17. Two resistances R(1) = 100 +- 3 Omega and R(2) = 200 +- 4 Omega are co...

    Text Solution

    |

  18. Assertion : Number of significant figure in 0.005 is one and that is 0...

    Text Solution

    |

  19. Assertion : L//R and CR both have same dimensions Reason L//R and CR...

    Text Solution

    |

  20. Assertion : Velocity , cannot be added to speed Reason : Both veloci...

    Text Solution

    |