Physics

Problem

Two metallic blocks

M_1

and

M_2

of same area of cross-section are connected to each other (as shown in figure). If the thermal conductivity of

M_2

K

, then the thermal conductivity of

M_1

will be : [Assume steady state heat conduction] ![](https://storage.googleapis.com/diraq-contents/homework-question-parsing/marker/20260106T182719Z/37ede05889284f67b37068196dba7220/c397c8d13a885b05543b490ca9317118_img.jpg) Diagram showing two metallic blocks,

M_1

and

M_2

, connected in series. The left end of

M_1

is at

100^\circ\text{C}

, the right end of

M_2

is at

0^\circ\text{C}

, and the junction is at

80^\circ\text{C}

. The length of

M_1

16 \text{ cm}

and the length of

M_2

8 \text{ cm}

. a.

10 K

8 K

12.5 K

2 K

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