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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