Question

If you go on increasing the stretching force on a wire in a guitar, its frequency

• A. Increases
• B. Decreases
• C. Remains unchanged
• D. None of the above

Answer 1

Answer: (A)

Increases

When a stretching force is applied to a string or a wire, it applies a restoring force in the opposite direction. This force tends to bring the wire in its original length. It is known as tension in wire.

When we apply a stretching force on the wire of a guitar, the wire applies tension backwards. Greater the stretching force, greater is the tension.

The frequency of vibration of a stretched wire is directly proportional to the square root of the tension in it.

Hence on increasing the stretching force on a wire in a guitar, its frequency increases