Question

State any four properties of ultraviolet radiation​

Answer 1

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Properties of ultraviolet (UV) radiation : -

(1) They are not very penetrating (blocked by air) even at high energies.

(2) They affect photographic plates.

(3) They produce fluorescence in certain materials.

(4) High energy UV radiations can accelerate aging of skin, damage DNA molecules in skin cells and cause skin cancer.

(5) They cause photoelectric effect.

(6) They induce production of vitamin D in the skin.

(7) They can pass through quartz, fluorite, rock salt, etc. but not through glass.

Answer 2

Four properties of ultraviolet radiation​.

Explanation:

• Ultraviolet radiation is considered as the electromagnetic radiation with the wavelength of about 10 nm to 400 nm.
• The sun is considered as their important source of the ultraviolet rays and this is also produced by special lamps and very hot bodies.
• These UV radiations can focus into very narrow beans for high precision application such as laser eye surgery.
• The UV lamps are considered as the one which is used to kill the germs in the water purifiers.

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