The wavelengths of light used in photosynthesis are found in the portion of the electromagnetic spectrum.

Visible light

Explanation:

Photosynthesis is a unique phenomenon in which plants use sunlight energy, which is a type of electromagnetic radiation, to manufacture their food. During this process, certain pigments in the leaves of plants called CHLOROPHYLL absorbs the blue and red wavelengths of light ranging from 400nm - 700nm.

However, these wavelengths of light (blue and red) that are used during the photosynthetic process are found in the VISIBLE LIGHT PORTION of the electromagnetic spectrum. The visible light is the only part that can be made use of by photosynthetic pigments.

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