Question

Sound travels with difference speed in different media. In what order does the velocity of sound increase in these media ?

• A. water, iron and air
• B. iron, air and water
• C. air, water and iron
• D. iron, water and air

Answer 1

The correct option is C air, water and iron

We know speed of sound in solids is maximum and in gases is minimum i.e. $v_s>v_l>v_g$ ,

as iron is solid , so speed of sound in iron will be maximum and in air being a gaseous mixture , is minimum

Thus air ,water ,iron , is the correct increasing order .