Question:
A list of mediums is given below
(i) Wood
(ii) Water
(iii) Air
(iv) Vacuum
In which of these mediums can sound travel?
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (iii) and (iv)
(d) (ii), (iii) and (iv)
Solution:
(b) Sound requires any medium to travel but in vacuum there is no medium, so sound cannot travel through them.