At an airport, a person is made to walk through the door way of a metal detector, for security reasons - Physics - Dual Nature Of Radiation And Matter

Question

At an airport, a person is made to walk through the door way of
a metal detector, for security reasons If the person is carrying
anything made of metal, the metal detector emits sound On what
principle does this detector work ? Explain

Sanjeev A.r · Accepted Answer

the metal detector works on the principle of electromagnetic
induction metal being a conductor will cause change in magnetic
field when the person walks through the doorway the change in
magnetic field induces voltage which is the n converted to make a
sound

At an airport, a person is made to walk through the door way of a metal detector, for security reasons. If the person is carrying anything made of metal, the metal detector emits sound. On what principle does this detector work.? Explain.