Question 3Which 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 and iv only(b) i and ii only(c) i, ii and iii only(d) ii, iii and iv only

Question 3Which of the following statements are correct?(i) Sound is p

1.	Question 3Which 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 and iv only(b) i and ii only(c) i, ii and iii only(d) ii, iii and iv only
Answer» Question 3 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 and iv only (b) i and ii only (c) i, ii and iii only (d) ii, iii and iv only