Home
Class 12
PHYSICS
Water falls from a height 500m, what is ...

Water falls from a height `500m`, what is the rise in temperature of water at bottom if whole energy remains in the water ? `(J=4.2)`

A

`0.96^(@)C`

B

`1.02^(@)C`

C

`1.16^(@)C`

D

`0.23^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C

By the law of conservation of energy JmC dT=mgh
`dT=(gh)/(Jc)=(9.8xx500)/(4.2xx10^(3))=1.17^(@)C`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Degrees of freedom and law of equipartition of energy & Application of specific hest capacities of gases)|87 Videos
  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Thermodynamics)|56 Videos
  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Mean Free Path)|8 Videos
  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

Water falls from a height 500 m. what is the rise in temperature of water at bottom if whole energy remains in the water?

Water falls from a height of 50 m. Calculate the rise in temperature of water when it strikes the bottom. ( g = 10 ms^(-2) , sp. heat capacity of water = 4200 J//kg^(@)C )

Water fall from height 63m. Find temperature difference of water between top and bottom position.

Victoria falls in Africa is 122 m in height. Calculate the rise in temperature of the water if all the potential energy lost in the fall is converted into heat.

A waterfall whose vertical height is 100m discharges water into a pool below the fall. Calculate the rise in temperature of water assuming that all the heat remains in the water. (Specific heat capacity of water =4200J kg^(-1)K^(-1) )

In a water-fall the water falls from a height of 100 m . If the entire K.E. of water is converted into heat, the rise in temperature of water will be

Calculate the rise in temperature of water, which falls from a height of 100m. Assume that 80% of the energy due to fall is converted into heat and is retaied by the water. J = 4.2 xx 10^(7) erg cal^(-1) .

The height of Niagra falls is 50 m. Calculate the difference in temperature of water at the top and at the bottom of fall, if J = 4.2 J cal^(-1) .

Water fall from a height 50m, If one third of its mechanical energy converted into heat what will be the rise in temperature of water

The height of victoria falls is 63 m. What is the difference in temperature of water at the top and at the bottom of fall ? [Given 1 cal=4.2 J and specific heat of water =1 cal g ^(-1) ""^(@)C ^(-1) ]

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Presure exerted by the gas molecule and kinetic energy)
  1. The kinetic energy per kg of nitrogen molecules at 175^(@)C is (Molecu...

    Text Solution

    |

  2. If the temperature of a gas is increased from 0^(@)C to 273^(@)C, then...

    Text Solution

    |

  3. A jar has a mixture of hydrogen and oxygen in the ratio 4:5. then the ...

    Text Solution

    |

  4. If the temperature of a gas is increased from 0^(@) to 273^(@)C, then ...

    Text Solution

    |

  5. Mean kinetic energy per gram mole of an ideal gas at 0^(@)C is nearly ...

    Text Solution

    |

  6. If one gm mole of nitrogen gas occupies 2xx10^(4) c.c. at a pressure o...

    Text Solution

    |

  7. If the mean kinetic energy of the molecules of a gas is (1/3)^(rd) of ...

    Text Solution

    |

  8. Two gases at absolute temperatures 300 K and 350 K respectively. Rat...

    Text Solution

    |

  9. If the average kinetic energy of gas molecule at 27^(@)C is 6.21xx10^(...

    Text Solution

    |

  10. The average kinetic energy of the molecules of hydrogen is E. if the m...

    Text Solution

    |

  11. When two gases having volumes 1 litres and 2 liters are at the same te...

    Text Solution

    |

  12. Total random kinetic energy of the molecules in 1 mole of a gas at a t...

    Text Solution

    |

  13. Temperature of gas is a measure of

    Text Solution

    |

  14. What is the K.E. of translational motion of molecules in 15 gram of am...

    Text Solution

    |

  15. A lead bullet strikes a target with velocity of 480 m/s. if the bullet...

    Text Solution

    |

  16. Water falls from a height 500m, what is the rise in temperature of wat...

    Text Solution

    |

  17. An ice block at 0^(@)C falls from rest at certain height. If 0.1% of i...

    Text Solution

    |

  18. A bullet of mass 4.2 gm is moving at certain velocity. If all its kine...

    Text Solution

    |

  19. The density of oxygen at N.T.P. is 16xx0.089kg//m^(3) then the R.M.S. ...

    Text Solution

    |

  20. Gas at a pressure P(0) in contained as a vessel. If the masses of all ...

    Text Solution

    |