Q427
A fountain pen works on the principle of
A.
Flow of liquids from higher to lower potential
B.
Capillary action
AnswerC.
Bernoulli's principle
D.
Viscosity of liquids
Answer: Option B
Solution
Answer: Option B
Solution:
A fountain pen is a nib pen that, unlike its predecessor, the dip pen, contains an internal reservoir of liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action.