Question

The sterilization of hospital rooms is done by .......... range of UV rays.

• A. 100-2000A${}^0$
• B. 2600-2700A${}^0$
• C. 3000-4000A${}^0$
• D. None of the above

Answer 1

The correct option is B 2600-2700A${}^0$

Ultraviolet sterilization is a disinfection method using UV light in the wavelength range 2600-2700A${}^o$ to kill or inactivate microorganisms by breaking molecular bonds within DNA, leading to the formation of thymine dimers that disrupting the DNA. Thus they are unable to perform vital cellular functions. Thus, the correct answer is option B.