MCQ
The dimensions of thermal resistance are
  • ${M^{ - 1}}{L^{ - 2}}{T^3}K$
  • B
    $M{L^2}{T^{ - 2}}{K^{ - 1}}$
  • C
    $M{L^2}{T^{ - 3}}K$
  • D
    $M{L^2}{T^{ - 2}}{K^{ - 2}}$

Answer

Correct option: A.
${M^{ - 1}}{L^{ - 2}}{T^3}K$
a
(a)Thermal resistance
$ = \frac{l}{{KA}} = \left[ {\frac{L}{{ML{T^{ - 3}}{K^{ - 1}} \times {L^2}}}} \right] = [{M^{ - 1}}{L^{ - 2}}{T^3}K]$

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