Month: July 2025

DOPPLER EFFECT
The change in wavelength or frequency due to the motion of a source relative to an observer.

SPECTROSCOPY
The study of the interaction between light and matter, used to analyze celestial objects.

BLACKBODY RADIATION
The electromagnetic radiation emitted by an object depending on its temperature.

ELECTROMAGNETIC RADIATION
The emission of energy in the form of waves or particles through space.

ENERGY
The amount of power carried by an electromagnetic wave, increasing with frequency.

FREQUENCY
The number of wave cycles per second, measured in hertz (Hz).

WAVELENGTH
The distance between two successive peaks of a wave.

PHOTON
A particle of light that carries energy through the electromagnetic spectrum.

GAMMA RAYS
The most energetic form of electromagnetic radiation, produced in nuclear reactions and cosmic events.

X-RAYS
High-energy radiation used in medical imaging and X-ray astronomy.