Answer:

1. B.1

2. I think D.3

3. A spectral color is a color that is evoked in a typical human by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light.

4. Different colors of light have different wavelengths and energy.

Explanation:

1.Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire. In wireless systems, this length is usually specified in meters (m), centimeters (cm) or millimeters (mm).

2.Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as temporal frequency to emphasize the contrast to spatial frequency, and ordinary frequency to emphasize the contrast to angular frequency.

3. A spectral color is a color that corresponds to a pure wavelength of visible light. All colors are formed with mixes of spectral colors such that they are the root of all color.

8 examples of a spectral color

Color -Wavelength (nm)

Green -520 - 565

Yellow -565 - 590

Orange - 590-625

Red - 625 -740

Cyan - 500 - 520

Blue - 460 -500

Indigo - 430 -460

4. Human eyes detect differences in wavelength and energy as differences in color.) Light toward the red end of the spectrum has longer wavelengths and lower energy than light toward the violet end of the spectrum.

sana makatulong ako sainyo .. sorry Po nalito lng ako sa number one and two