For a uniform slab of thickness

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

l

, cross-sectional area

A

and thermal conductivity

k

, the thermal resistance

R

of the slab is (a)

\displaystyle \frac{2l}{kA}

(b)

\displaystyle \frac{l}{2kA}

(c)

\displaystyle \frac{l}{kA}

(d)

\displaystyle \frac{3l}{2kA}