Question

22.a) The radiant heat is incident on a body at the rate of 400 l/s. If
coefficient of absorption and coefficient of reflection are 0.3 and
0.4 respectively. Find the radiant heat absorbed, reflected and
transmitted in 10 second b) Define angle of contact. State the
factors affecting the angle of contact.​

Answer 1

Answer:

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Answer 2

The value of the angle of contact depends on

the following factors,

i) The nature of the liquid and the solid in

contact.

ii) Impurity : Impurities present in the liquid

change the angle of contact.

iii) Temperature of the liquid : Any increase

in the temperature of a liquid decreases its

angle of contact. For a given solid-liquid

surface, the angle of contact is constant at

a given temperature.