The co-efficient of thermal conductivity of copper, mercury and glass respectively Kc,Km and Kg such that Kc >Km >Kg if the same quantity of heat is flow per sec per unit area of each and corresponding temperature gradient are Xc,Xm and Xg :

Book Online Demo

Check Your IQ

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

The co-efficient of thermal conductivity of copper, mercury and glass respectively K_c,K_mand K_g such that K_c >K_m >K_g if the same quantity of heat is flow per sec per unit area of each and corresponding temperature gradient are X_c,X_m and X_g :

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

$X_{c} = X_{m} = X_{g}$

$X_{c} > X_{m} > X_{g}$

$X_{c} < X_{m} < X_{g}$

$X_{m} < X_{c} < X_{g}$

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

$Q = \frac{KA (Δθ) t}{l} \Rightarrow K (\frac{Δθ}{l}) = const$
$(\frac{Δθ}{l}) \propto \frac{1}{K} \Rightarrow X \propto \frac{1}{K}$ ;Since, K_c >K_m >K_g
For same quantity of heat flow per sec per unit
area of each X_c < ,X_m < X_g