Home
Class 12
PHYSICS
If the unit of length and force be incre...

If the unit of length and force be increased four times, then the unit of energy is

A

16 times

B

8 times

C

2 times

D

4 times

Text Solution

Verified by Experts

The correct Answer is:
A
Joule=(Newton)(Metre)=`("4 Newton")/(4)xx("4 Metre")/(4)`
`=("Joules")/(16)`
Hence 1 Joules=16 joule(Joules is new unit of energy)
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|16 Videos

  • WORK, ENERGY AND POWER

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|16 Videos

  • WAVES

    PHYSICS WALLAH|Exercise NEET PAST 4 YEARS QUESTIONS |15 Videos

Similar Questions

Explore conceptually related problems

If the units of length and force are increased by four times the unit of energy will be incresed by

If the unit of length and force each becomes four times, then the unit of energy becomes

If the units of length and force be increased three times, show that the unit of energy is increased nine times.

If the units of length and force be increased three times, show that the unit pof energy is increased by 9 times.

If the units of mass and velocity are increased by two times then the unit of momentum will be increased by............

If the amount of a radioactive substance is increased four times then how many times will the number of atoms disintegrating per unit time be increased ?

If the units of force and length are doubled, then the unit of energy will be

PHYSICS WALLAH-WORK, ENERGY AND POWER-Level - 2
  1. If the unit of length and force be increased four times, then the unit...

    Text Solution

    |

  2. A rigid body moves a distance of 10m along a straight line under the a...

    Text Solution

    |

  3. A 50kg man with 20 kg load on his head climbs up 20 steps of 0.25 m he...

    Text Solution

    |

  4. A force acting on a particle varies with the displacement x as F=ax-bx...

    Text Solution

    |

  5. A position dependent force F=7-2x+3x^(2) acts on a small body of mass ...

    Text Solution

    |

  6. A block of mass m at rest is acted upon by a force F for a time t. The...

    Text Solution

    |

  7. A particle of mass 0.1 kg is subjected to a force which varies with di...

    Text Solution

    |

  8. If v,p and E denote velocity, lenear momentum and KE of the paritcle r...

    Text Solution

    |

  9. A motor boat is travelling with a speed of 3.0m / sec . If the force o...

    Text Solution

    |

  10. An engine develops 10 kW of power. How much time will it take to lift ...

    Text Solution

    |

  11. A uniform chain of length 2 m is kept on a table such that a length of...

    Text Solution

    |

  12. The potential energy of a particle in a force field is: U = (A)/(r^(...

    Text Solution

    |

  13. The potential energy of a particle varies with distance x as shown in ...

    Text Solution

    |

  14. The potential energy of a force filed vec(F) is given by U(x,y)=sin(x+...

    Text Solution

    |

  15. A body of mass m is moving in a circle of radius r with a constant spe...

    Text Solution

    |

  16. A block of mass m is suspended by a light thread from an elevator. The...

    Text Solution

    |

  17. A particle of mass 2 kg travels according to S=3t^3+2t Find the work d...

    Text Solution

    |

  18. Starting at rest , a 10kg object is acted upon by only one force as in...

    Text Solution

    |

  19. A block of mass 50 kg is projected horizontal on a rough horizontal fl...

    Text Solution

    |

  20. The graph between the resistive force F acting on a body and the dista...

    Text Solution

    |