Question

The decrease in the length of the air column of a wind instrument:

• A. increases frequency
• B. increases loudness
• C. decreases frequency
• D. no effect on frequency and loudness

Answer 1

The correct option is A

increases frequency

1. Wind instruments make use of the length of the air column to produce sound.
2. These are also called reed-type instruments.
3. Wind instruments are generally made of wood, although some are made of metal or plastic.
4. By increasing or decreasing the length of the air column, which is done by opening or closing the holes cut into them, vibrations of different frequencies are set up, which produces sweet music.
5. Here, frequency increases with the decrease in the length of the air column.

Hence , option A is correct