Heat Transfer

In summer water kept in a bottle become hot but when cover the bottle with a wet towel the water becomes cool. Why?

The wavelength of maximum intensity for emitted radiation from a source is $11\times {10}^{-5} \mathrm{cm}$.  The temperature of this source is $n$ times the temperature of some other source for which the wavelength at maximum intensity is known to be $5.5\times {10}^{-5} \mathrm{cm}$. Find the value of $n$.

If the coefficient of performance of a refrigerator is $5$and it operates at a room temperature of $27 \mathrm{℃}$, the temperature inside the refrigerator is in kelvin $\left(\mathrm{K}\right)$:

In which year did Albert Bandura conduct the Bobo doll experiment?

Which sense modality is responsible for detecting pressure and temperature on the skin?

What is the primary agent of mechanical weathering?

What is the main driving force behind the movement of tectonic plates?

What is the main driving force behind seafloor spreading?

In which step of the import procedure are goods inspected and evaluated by customs authorities?

What is the purpose of the Bill of Entry in the import procedure?

What is the purpose of a Certificate of Origin in export procedures?

What document is used to transfer title of goods from seller to buyer in export trade?

What is the first step involved in the export procedure?

Which current is responsible for the warm climate of Western Europe?

Which ocean current is known as the 'Global Conveyor Belt'?

What is the average temperature of the deep waters of the oceans?

Which factor primarily affects the temperature of ocean waters?

At what depth does the temperature of ocean water typically remain constant?

Which ocean has the highest average surface temperature?

What is the average temperature of the surface water in the equatorial region?