Question

A comb run through one's dry hair attracts small bits of paper. This is due to?

• A. Paper is good conductor
• B. Comb is a good conductor
• C. The comb possesses magnetic properties
• D. The atoms in the paper gets polarised by the charged comb

Answer 1

The correct option is D

The atoms in the paper gets polarised by the charged comb

1. On combing, the dry hair with a comb the comb gets charged due to the friction.
2. The charged comb polarises the atoms of bits of paper and induces an opposite charge in the paper atom and as we know that the opposite charges attracts thus the paper sticks to the comb.

Hence, the comb attracts the bits of paper by polarizing the atoms of the bits of paper.