1.

A simple pendulum is set into vibrations. The bob of pendulum come to rest after some time due to A) Air frictionB) Moment of inertiaC) Weight of bobD) Combination of all above

Answer»

A) Air friction

Explanations:

  • The arrangement consists of a light aluminium piston which is attached to the moving system.
  • When the piston moves inside the chamber, the air inside is compressed and pressure  of air ,thus builds up ,opposes the motion of piston and hence the whole moving system.


Discussion

No Comment Found

Related InterviewSolutions