An oscilloscope is an instrument which allows us to see waves produced by

An oscilloscope is an electronic test instrument primarily used to visualize and analyze electrical signal waveforms by plotting voltage against time [2]. While it directly measures electrical signals, it can be used to observe waves from other physical phenomena by using a transducer. A transducer converts one form of energy into an electrical signal that the oscilloscope can process. For instance, a microphone acts as a transducer that converts sound energy into electrical signals, allowing the oscilloscope to display the frequency and amplitude of sound waves. In contrast, visible light, X-rays, and Gamma rays are high-frequency electromagnetic radiations that are typically analyzed using spectrometers or specialized detectors rather than standard oscilloscopes [1]. Therefore, among the given options, the oscilloscope is most commonly associated with visualizing sound waves via audio signal conversion.

Sources

1. [2] Science , class X (NCERT 2025 ed.) > Chapter 9: Light – Reflection and Refraction > p. 134
2. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 20: Earths Atmosphere > Ionosphere (80 to 400 km) > p. 278