Question

sound travels faster in solids than in gases because

(a) density of solids is more
(b) modulus of elasticity is more than that of gases

i think the correct option is (a), but in the book it given (b)..... first of all what does option (b) mean...... tell which is the correct option giving reason why the other is wrong.......

Answer 1

either the book answer would be wrong. I think so