Properties Of Solids And Liquids Question 332

Question: Work done in splitting a drop of water of 1 mm radius into 106 droplets is (Surface tension of water =72×103J/m2) [MP PET/PMT 1988; CPMT 1989; RPET 2001]

Options:

A) 9.58×105J

B) 8.95×105J

C) 5.89×105J

D)5.98×106J

Show Answer

Answer:

Correct Answer: B

Solution:

Work done in splitting a water drop of radius R into n drops of equal size=4πR2T(n1/31)

=4π×(103)2×72×103×(106/31)

=4π×106×72×103×99=8.95×105J



NCERT Chapter Video Solution

Dual Pane