1 cm thick layer of ice is formed on a lake. Temperature of air is −100C. Coefficient of heat conduction of ice is 4 × 10−4 kcal m−1s−1, density of ice = 9 × 103 kg/ m3 and Latent heat of ice = 80 k cal / kg. Then the rate of conduction of heat through unit area of ice layer is

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

0.4 k cal/ m2−s

0.6 k cal/ m2−s

1.2 k cal/ m2−s

0.8 k cal/ m2−s

answer is A.

(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

(1)Rate of heat conduction through unit area= k. Δθx=4 × 10−4× 0−−1010−2k cal/ m2−s=0.4 kcal/m2−s

Watch 3-min video & get full concept clarity