Answer:
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz (Hz).
Explanation:
Answer: In a logical Pace forum subject to the distance
if the image is on the book yes , no its can be both
we cannot view through an opague object since it does not alow light through but only cast shadows