3
Question Question 3
Match the following:
| Column A | Column B |
|---|---|
| (a) Vibrations cause | (i) absorb sound |
| (b) A shriller sound is | (ii) second |
| (c) Unit of frequency | (iii) sound |
| (d) Unit of time period | (iv) of high pitch |
| (e) Curtains | (v) hertz |
| Column A | Column B |
|---|---|
| (a) Vibrations cause | (iii) sound |
| (b) A shriller sound is | (iv) of high pitch |
| (c) Unit of frequency | (v) hertz |
| (d) Unit of time period | (ii) second |
| (e) Curtains | (i) absorb sound |