Question

Give scientific reasons.

(a) A condenser has two taps.

(b) At dawn, in winter, we see dewdrops on leaves of trees.

Answer 1

(a) A condenser has two taps, one is inlet and other is outlet, for the better circulation of cold water around the inner tube.

(b) At dawn, in winter, the surface temperature is very less. When surface temperature drops, atmospheric water vapours condense to form small droplets on the surface. Thus, we observe dewdrops on leaves of the trees.