Bob and Tracey are going on holiday with their parents. At the airport their bags are scanned as part of the security procedures. Which type of electromagnetic wave is used to scan their bags?

hi there if you are asking for conformation that wavelingth is the correct answer is wrong it is the answer is frequency. : )

i hope this you out, have a wonderful day

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

im guessing the west of station b

because if the tool that you are using is not balanced it there would be false mass.