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STD 11 - 10.2. transmission of heat — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 10.2. transmission of heat4 Marks
MCQ
In Searle's method for finding conductivity of metals, the temperature gradient along the bar
  • A
    Is greater nearer the hot end
  • B
    Is greater nearer to the cold end
  • ✓
    Is the same at all points along the bar
  • D
    Increases as we go from hot end to cold end
✓

Answer

Correct option: C.
Is the same at all points along the bar
c
Searle's bar method is an experimental procedure to measure thermal conductivity of material. $A$ bar of material is being heated by steam on one side and the other side cooled down by water while the length of the bar is thermally insulated. This is done until the temperature gradient at all the points along the bar become same.

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