Which of the following statements are correct?

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) and (ii)

(b) (i), (ii) and (iii)

(c) (ii), (iii) and

(iv) (d) (i), (ii) and (iv)

Solution:

(d) Because light can travel in vacuum also but it is only sound which requires medium to travel.

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