(b) Is this line in the visible region of the electromagnetic spectrum?

Key Concepts

Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, arranged by wavelength or frequency. It includes gamma rays, X-rays, ultraviolet light, visible light, infrared radiation, microwaves, and radio waves. The visible region specifically refers to the wavelengths that can be detected by the human eye, typically ranging from about 400 to 700 nanometers.

Visible Light

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye. It consists of various colors, each corresponding to a specific wavelength, with violet having the shortest wavelength and red the longest. Understanding the characteristics of visible light is essential for determining whether a specific line or wavelength falls within this range.

Wavelength and Frequency

Wavelength and frequency are fundamental properties of electromagnetic waves. Wavelength is the distance between successive peaks of a wave, while frequency is the number of peaks that pass a point in one second. These two properties are inversely related; as wavelength increases, frequency decreases, and vice versa. This relationship is crucial for identifying whether a specific line is in the visible spectrum.