Question

UV Rays are useful for

• A. Sterilizing purposes
• B. Detecting purity of gems, ghee, etc
• C. Producing Vitamin D in food of plants and animals
• D. All of the above

Answer 1

The correct option is D All of the above

All of the options are uses of UV Radiations.

It can sterilize many substances. Most important application is water sterilization which is used in modern water purifiers.

Fluorescence tests in Ruby and Sapphire allows detecting purity of gems.

Some components of UV light plays key role in Vit D synthesis.