There are two identical vessels filled with e | vedclass

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Question

(b) $Q = \frac{{KA({	heta _1} - {	heta _2})}}{l}t = $ $ \Rightarrow {K_1}{t_1} = {K_2}{t_2}$ $ \Rightarrow \frac{{{K_1}}}{{{K_2}}} = \frac{{{t_2}}}{

Vedclass · Accepted Answer

$7:4$

Vedclass · Answer

(b) $Q = \frac{{KA({	heta _1} - {	heta _2})}}{l}t = $ $ \Rightarrow {K_1}{t_1} = {K_2}{t_2}$ $ \Rightarrow \frac{{{K_1}}}{{{K_2}}} = \frac{{{t_2}}}{{{t_1}}} = \frac{{35}}{{20}} = \frac{7}{4}$
(As $Q$ , $l$ , $A$ and $({	heta _1} - {	heta _2})$ are same)

There are two identical vessels filled with equal amounts of ice. The vessels are of different metals., If the ice melts in the two vessels in $20$ and $35$ minutes respectively, the ratio of the coefficients of thermal conductivity of the two metals is

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