Photographic plates are sensitive to a limited range of the electromagnetic spectrum, specifically the visible light region. Photographic plates contain light-sensitive chemicals that react to incoming photons within the visible range, capturing and storing the information as an image.
However, photographic plates are not sensitive to other regions of the electromagnetic spectrum such as radio waves, microwaves, infrared, ultraviolet, X-rays, or gamma rays. These regions of the spectrum have different wavelengths and energy levels that require specialized detectors or films designed specifically for those wavelengths.
To detect other regions of the electromagnetic spectrum, different types of detectors are used. For instance, radio waves are detected using antennas and receivers, while X-rays and gamma rays are detected using specialized materials or detectors like scintillation detectors or solid-state detectors.
Therefore, photographic plates are not capable of directly detecting all members of the electromagnetic spectrum. Their sensitivity is limited to visible light, and to detect other regions, specific detectors and technologies are necessary.