Question

Ques7. 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 & ini
only
(c) ii, iii & iv
only
(d) i, ii & iv
only​

Answer 1

Answer:

i,ii and iv are correct. so your answer is D

Answer 2

Answer:

(d) Because light can travel in vacuum also but it is only sound

which requires medium to travel.

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