ULTRAVIOLET RAYS - Weebly

ULTRAVIOLET RAYS - Weebly

ULTRAVIOLET RAYS BY: BRENTON EDWARDS Physical Description Invisible to the human eye Shorter wavelength than visible light 10 to 400 nanometers

800,000,000,000,000 to 30,000,000,000,000,000 cycles per second 186,000 miles per hour Electromagnetic radiation Uses

Drying clothes Sunbed research Zapping bugs Tans Source

Sunlight UV lamps Arc welding Mercury vapour lamps Benefits and Hazards

Benefits Vitamin d production Improved mood Hazards Acceleration of aging skin

Promotion of skin cancer Etc. Occupational Exposure Limits 315-400 nm Applications Used to kill microbes

UV lamps to sterilize food and drug companies product Used by a doctor to treat vitamin d deficiency Fun Facts Ultraviolet rays are visible to bees Ultraviolet means beyond light

Spanish beach umbrellas dont provide sufficient sun protection You can still get sunburned on a sunny winter day

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