5. 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) only
(b) (i), (ii) and (iii) only
(c) (ii), (ii) and (iv) only
(d) (i), (ii) and (iv) only
Answers
Answered by
2
Answer:
(i),(ii) and (iv) only.
Explanation:
(i) Yes, sound is produced by vibrations.
(ii) Yes, sound requires a medium for propagation, it cannot travel through vacuum.
(iii) Light doesn’t require a medium, it can travel through vacuum. Therefore, false.
(iv) Yes, sound travels slower than light. That’s why a thunder is heard before lightning.
Therefore, (i),(ii),(iv) are correct.
Answered by
0
Answer:
(i)(iii) and (iv) are correct
Explanation:
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