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Mention the formulae for coefficient of ...

Mention the formulae for coefficient of performance of a refrigerator .

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Coefficient of performance `beta` may be defined as the ratio of amount of heat extracted from the cold reservior to the amount of work done by the pump in order to reject heat to the hot surrounding .
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SUBHASH PUBLICATION-ANNUAL EXAMINATION QUESTION PAPER NORTH- 2018-PART - D
  1. Mention the formulae for coefficient of performance of a refrigerator ...

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  2. What is v-t graph? Derive the expression x = V0 t + 1//2 at^2 using v...

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  3. State and prove conservation of linear momentum in case of collision o...

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  4. Define torque and angular momentum .

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  5. Derive the relation between torque and angular momentum .

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  6. Explain different stages of Carnot's cycle with P-V diagram .

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  7. Derive an expression for time period of oscillating bob of simple pend...

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  8. Mention the differences between progressive and stationary waves .

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  9. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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  10. A man weighing 49 kg carries a bag of 2 kg . He climbs to the top of a...

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  11. Calculate g at the bottom of a mine 8 km deep and at an altitude 32 km...

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  12. A cubical ice box of thermocol has each side 30 cm and thickness 5 cm ...

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  13. The apparent frequency of a note when an observer moves towards a stat...

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  14. Show that x=v(0)t+1//2at^(2) by graphical method.

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  15. State and prove conservation of linear momentum in case of collision o...

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  16. Define torque and angular momentum .

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  17. Derive the relation between torque and angular momentum .

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  18. Explain different stages of Carnot's cycle with P-V diagram .

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    |

  19. Derive an expression for time period of oscillating bob of simple pend...

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    |

  20. Mention the differences between progressive and stationary waves .

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    |

  21. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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    |