Which is a form of cold sterilization -
Ionising radiations:Xray ,Gamma rays Cold sterilisation is a process in which sterilisation is carried out at a low temperature with the help of chemicals,radiations,membranes and all other means excluding higher temperature REF:Ananthanarayan & Panicker's Textbook of Microbiology 9th edition pg no:33
Gamma rays
Beta rays
Infrared rays
Autoclave
general microbiology