Fact/Bluff
1.Our eyes are sensitive to electromagnetic waves of
wavelengths that ranges from 4x10-7 m to 7x10-7 m.
2.Ultraviolet radiation is also used in sterilizing water from
drinking fountains.
3.Ultraviolet radiation in sunlight produces vitamin D in the
skin.
4.In the visible light spectrum red color has the longest
wavelength from among these colors and violet has the
shortest.
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