Question

A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through :

(a) water

(b) wax

(c) vacuum

(d) empty vessel

Answer 1

Sound requires a medium to travel. Since there is nothing in the vacuum, sound cannot travel. As such the person with normal hearing range cannot hear it.

So, the correct option is (c) vacuum