Hertz experiment is used for

Options

A. Production of electromagnetic wave
B. Detection of electromagnetic wave
C. Both (1) and (2)
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Setup**: The Hertz experiment involves a setup with two metal plates, often made of copper or zinc, connected to highly polished metal spheres. This configuration is crucial for generating and detecting electromagnetic waves.

2. **Connecting the Inductor**: An inductor coil is connected across the two metal spheres. The purpose of this inductor is to generate a high voltage across the spheres.

3. **Ionization of Air**: When a high voltage is applied, the air between the spheres becomes ionized. This ionization allows for the conduction of electricity, resulting in a spark.

4. **Generation of Electromagnetic Waves**: The spark produced due to the ionization of air emits electromagnetic waves. This is a key aspect of Hertz's experiment, as it demonstrates the production of these waves.

5. **Detection of Electromagnetic Waves**: The setup also includes half-open spheres that act as detectors for the electromagnetic waves generated. This dual function of the apparatus—producing and detecting electromagnetic waves—is central to the experiment.

6. **Conclusion**: The Hertz experiment is primarily used for both the production and detection of electromagnetic waves, confirming the existence of these waves as predicted by Maxwell's equations.