Which of the following rays used to destroy bacteria and insects? UV rays, Gamma rays ,Alpha rays ,Beta rays

Explanation

UV rays and gamma rays are used to destroy bacteria and insects.

Alpha and beta rays are generally not used for these purposes. 

UV rays

Bacteria:

• UV-C light, a specific range of ultraviolet light, damages the DNA and RNA of microorganisms, including bacteria, preventing them from reproducing.
• This makes it an effective disinfectant for surfaces, air, and liquids.

Insects:

• High-intensity UV-C light can kill insects, though typical bug zappers use UV-A light, which mostly just attracts insects to an electric grid.
• Studies have also found that specific short wavelengths of blue and UV light are lethal to some insect pests. 

Gamma rays

Bacteria:

Gamma irradiation, most commonly using cobalt-60,

It is widely used to sterilize medical equipment and pasteurize food by damaging the DNA of bacteria and other microorganisms.

Insects:

Gamma irradiation is a proven method for eliminating pests like insects and mites in stored food products and for controlling insect populations in agriculture. 

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