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GAURAV KUMAR

· started a discussion

· 1 Months ago

do you what is difference between these. donnt write anything, gravitational force should be answer.
u r explaining that gravity not gravitational force, donnt u even knw the basic of science.

Question:
Ball pen functions on the principle of -
Options:
A) Viscosity
B) Boyle's law
C) Gravitational force
D) Surface tension
Solution:
Ans: (d) Ball pen function is based on the principle of Surface tension. Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible.

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