Home
Class 12
PHYSICS
Coefficient of thermal conductivity is t...

Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area x difference in temperature x time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are 21.6 kg, 1 decimetre, 4 K and 1 minute will be ______ `xx 10^(-6)` new units.

Text Solution

Verified by Experts

The correct Answer is:
2.5
Promotional Banner

Topper's Solved these Questions

  • JEE MOCK TEST 26

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • JEE MOCK TEST 4

    NTA MOCK TESTS|Exercise PHYSICS - SUBJECTIVE NUMERICAL|5 Videos

Similar Questions

Explore conceptually related problems

State the factors on which the conduction of heat through a substance depends. Obtain an expression for the heat conducted and hence define coefficient of thermal conductivity and give its units and dimensions.

On what factors does the rate of heat conduction in a metallic rod in the steady state depend? Write the necessary expression and hence define the coefficient of thermal conductivity. Write its units and dimensions also.

A wall consists of alternating blocks withlength 'd' and coefficient of thermal conductivity k_(1) and k_(2) . The cross sectional area of the blocks are the same. The equivalent coefficient of thermal conductivity of the wall between left and right is:-

Three metal rods of coefficient of thermal conductivities K,2K,3K conducts heats of 3Q, 2Q,Q per seconds through unit area then the ratio of temperature gradients .

Calculate the rate of loss of heat through a glass window of area 1000 cm^(2) and thickness 0.4 cm when temperature inside is 37^(@)C and outside is -5^@)C . Coefficient of thermal conductivity of glass is 2.2 xx 10^(-3) cal s^(-1) cm^(-1) K^(-1) .

For a glass window of area 1500 cm^2 and thickness 0.5 cm, determine the rate of loss of heat if the temperature inside the window is 35^@C and outside is -2^@C . Take, coefficient of thermal conductivity of glass = 2.2 xx 10^(-3) cal s^(-1) cm^(-1) K^(-1)

Two rods of length d_(1) and d_(2) and coefficients of thermal conductivites K_(1) and K_(2) are kept touching each other. Both have the same area of cross-section. The equivalent thermal conductivity.

NTA MOCK TESTS-JEE MOCK TEST 3-PHYSICS
  1. A wire of length L= 20 cm is bent into a semicircular arc and the two ...

    Text Solution

    |

  2. A vertical spring of force cosntant 100 N//m is attached with a hangin...

    Text Solution

    |

  3. The radii of two planets are respectively R(1) and R(2) and their dens...

    Text Solution

    |

  4. The magnetic flux through a circuit of resistance R changes by an amou...

    Text Solution

    |

  5. The shortest wavelength in Lyman series is 91.2 nm. The longest wavele...

    Text Solution

    |

  6. Two infinite sheets carrying current in same direction (of equal curre...

    Text Solution

    |

  7. A block of wood is floating in water at 0^@ C. The temperature of wate...

    Text Solution

    |

  8. A bat moving at 10 ms^(-1) towards a wall sends a sound signal of 8000...

    Text Solution

    |

  9. A particle of mass 2 kg moving with a speed of 6 m/s collides elastica...

    Text Solution

    |

  10. The displacement of a particle of mass 3g executing simple harmonic mo...

    Text Solution

    |

  11. A bullet is fired from a gun. The force on the bullet is given by F = ...

    Text Solution

    |

  12. The moment of inertia of a rigid body in terms of its angular momentum...

    Text Solution

    |

  13. In a system used for spraying cars, a car body is positively charged. ...

    Text Solution

    |

  14. In the given circuit, Reading of ammeter is 1 A. If each of the 4 Omeg...

    Text Solution

    |

  15. The temperature of n moles of an ideal gas is increased from T to 4T t...

    Text Solution

    |

  16. A point P moves in a counter-clockwise direction on a circular path as...

    Text Solution

    |

  17. Coefficient of thermal conductivity is the product of heat, distance a...

    Text Solution

    |

  18. Two trains A and B of length 400 m each are moving on two parallel tra...

    Text Solution

    |

  19. Two forces whose magnitudes are in the ratio 3:5 give a resultant of 2...

    Text Solution

    |

  20. Consider the situation shown in figure. Find the maximum angle theta f...

    Text Solution

    |