a) Derive a relation between surface tension and surface energy. b) N identical spherical drops of water falling with a terminal velocity \( v_1 \)…
Class 12 Physics · 2081 · Solved Question with Answer
a) Derive a relation between surface tension and surface energy.
b) N identical spherical drops of water falling with a terminal velocity\( v_1 \) were to coalesce to form a bigger drop and fall with a new terminal velocity \( v_1 \)\( v_2 \) through air. (Neglect air resistance)
i) Obtain a relation between \( v_1 \) and \( v_1 \)
ii) If N=2 and \( v_1 = 0.4 \text{ ms}^{-1} \) then calculate \( v_2 \)