The dimensions of coefficient of thermal conductivity is:

M L^{.2} T^{.2} K^{.1}

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M L T^{. - 3} K^{. - 1}

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M L T^{.2} K^{.1}

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M L T^{.3} K

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Solution

The correct option is C $M L T^{. - 3} K^{. - 1}$
The dimension of coefficient of thermal conductivity is $M^{1} L^{1} T^{- 3} K^{- 1}$
Hence,
option $B$ is correct answer.

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Similar questions

(\frac{d Q}{d t} = - K A \frac{d T}{d x})

d Q

d t

K

A

d T

d x

a) Thermal resistance	e) $M T^{- 3} K^{- 4}$
b) Stefan's constant	f) $M L T^{- 3} K^{- 1}$
c) Wein's constant	g) $M^{- 1} L^{- 2} T^{3} K$
d) coefficient of thermal conductivity	h) $M^{o} L K$

	Column I (Units)		Column II (Dimensional formulae)
(A)	Pa s	(p)	$[M^{0} L^{2} T^{- 2} K^{- 1}]$
(B)	N m K $^{- 1}$	(q)	$[M L T^{- 3} K^{- 1}]$
(C)	J kg $^{- 1}$ K $^{- 1}$	(r)	$[M L^{- 1} T^{- 1}]$
(D)	W m $^{- 1}$ K $^{- 1}$	(s)	$[M L^{2} T^{- 2} K^{- 1}]$

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