Q. A comb run through one’s dry hair attracts small bits of paper. This is due to
A) Comb is good conductor
B) Paper is good conductor
C) The atoms in the paper get polarised by the charged comb
D) The comb possesses magnetic properties
Explanation
(c) When a comb runs through one’s dry hair, then comb gets charged and when it comes close to paper, it induces opposite charges in paper. The field due to the charges in comb, polarises the atoms in the paper. Finally is attracts the paper.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.