Question

A list of mediums given below.
i)wood, ii) water iii) air and iv) vacuum.
In which of these mediums the sound can travel ?

• A. ii) and iii) only.
• B. i),ii) and iii) only.
• C. iii) only
• D. iii) and iv) only.

Answer 1

The correct option is B i),ii) and iii) only.

Sound is produced due to the vibration of particles which are presents in the medium. In all the medium wood, water and air, particles are presents and sound can travel. But in vacuum, there is no particles, so no vibration and hence no sound can be produced or travel.

So the correct answer is B.