Q3Multiple choice
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 & iii only
- (c)ii, iii & iv only
- (d)i, ii & iv only
Show answer
(d) i, ii & iv only