In the field of physics, that rather depends on the frequency. Optics in the case of light waves; Acoustics in the case of audio (pressure/velocity) waves; radio-physics in the case of radio waves; and Geophysics in the case of seismic waves.
I presume you do not inquire after Sting Rays.
The scientific study of matter and motion is called physics. Physics seeks to understand the natural world by examining the fundamental properties of matter and energy and how they interact with each other.
Light rays coming in are called incident light rays.
The scientific study of energy and how it interacts with matter is called physics. Physics explores the fundamental forces and laws that govern the universe, including energy transfer and transformation. It encompasses various branches such as thermodynamics, electricity and magnetism, and quantum mechanics.
The light rays that bounce back are called reflected light rays.
The study of how things work is called engineering. Engineering is a broad discipline that involves applying scientific and mathematical principles to design and create systems, structures, and technological solutions to various problems.
The scientific study of sound is called acoustics.Related Information:The scientific study of sound perception is called Psychoacoustics.The scientific study of hearing, balance, and related disorders is called Audiology.
Astronomers use the EM spectrum, Physicists speculate about it, yet the practical study of it falls to the Mechanical Engineers: your answer = mechanical engineering.
The study of sleep is called polysomnography.
The scientific study of plants is called botany. People who study botany are called botanists.
The scientific study of mountains is called orology. This field of study focuses on the formation, structure, and geological processes associated with mountains.
The scientific study of heredity is called genetics. It involves studying how traits are passed down from one generation to the next and the role of genes in determining an organism's characteristics.
The scientific study of minerals is called mineralogy. It involves the identification, classification, and study of minerals' properties, distribution, and formation processes in the Earth's crust.
Manuology
toxicology
sphragistics
It is called Ornithology
Reproduction