Question

Which of the following statements are correct?

(i) Sound is produced by vibrations.

(ii) Sound requires a medium for propagation.

(iii) Light and sound both require a medium for propagation.

(iv) Sound travels slower than light.


(a) i & ii only
(b) i, ii & iii only
(c) ii, iii & iv only
(d) i, ii & iv only​

Answer 1

Answer:

Option d is the answer.

Explanation:

Basically all the options (except c) are correct.

Sound requires a medium but Light doesn't require a medium.

Answer 2

Answer:

(d) i, ii & iv only.

Is your required answer.

iii) is Not Because light can travel in vacuum also but it is only sound which requires medium to travel.