What cannot be transmitted over fiber optic cables?

Fiber optic cables are designed to transmit light signals, making them highly effective for data communication. However, they cannot transmit electrical signals or radio waves, as they rely on light rather than electricity for signal transmission. Additionally, certain forms of electromagnetic interference that affect copper cables do not impact fiber optics, but they cannot carry signals that are not converted to light. Lastly, fiber optics are not suitable for transmitting power, as they are solely used for data transmission.