The working principle of a ball point pen is:

Bernoullis theorem

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Surface tension

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Gravity

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Viscosity

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Surface tension
In a ballpoint pen, a ball is fixed in the tip of the pen. Ball is rotated by the friction with paper. Due to the capillary action (the gap between ball and ball holder is min) the ink flows between ball and ball holder and it is printed on the paper. This capillary action is due to the surface tension.

Suggest Corrections

Similar questions

Ball pen and fountain pen depends respectively on principle of:-

Join BYJU'S Learning Program