In what way does the temperature of water at the bottom of a waterfall differ from the temperature at the top ? Explain the reason.

Triple point temperature of water is

The temperature of water at the surface of a deep lake is 2^@C . The temperature expected at the bottom is

In what ways does the interior surface of the membrane of a resting neuron differ from the external surface :-

How does the pressure at a certain depth in water differ from that of the same depth in river water. Explain year answer.

A dam has broader walls at the bottom than at the top. Explain.

Is the thermometer reading of the temperature of air (in shade) the same as the temperature of sand or water? What do you think is the reason for this? And why does the temperature have to be measured in the shade?

An air bubble starts rising from the bottom of a lake. Its diameter is 3.6 mm at the bottom and 4 mm at the surface. The depth of the lake is 250 cm and the temperature at the surface is 40^@ C . What is the temperature at the bottom of the lake? Given atmospheric pressure = 76 cm of Hg and g = 980 cm//s^2 .

Does the temperature of a body depend on the frame from which it is observed?

Density of water varies with temperature. What are its consequences ?

Following number line shows the temperature in degree celsius 90^@ C right ) at different places on a particular day. (a) Observe this number line and write the temperature of the places marked on it. (b) What is the temperature difference between the hottest and the coldest places among the above? (c) What is the temperature difference between Lahulspiti and Srinagar? (d) Can we say temperature of Srinagar and Shimla taken together is less than the temperature at Shimla? Is it also less than the temperature at Srinagar ?