Question

i) Which pin (A, B or C) will fall last?
ii) Which mode of transfer of heat is demonstrated in the above picture?
iii) List the two conditions necessary for the transfer of heat to take place by this
mode.
iv) Why in places having hot climate, it is advised that the outer walls of the houses
be painted white?​

Answer 1

Answer:

4th answer In places of hot climate it is advised that the outer walls of houses be painted white. Explain. Solution 7: The white reflects back most of the heat that falls on it, so, it is advisable that the outer walls of houses should be painted white in winters.