Which of the following statements best describes the use of a device for detecting metal objects during security screenings?
It identifies magnetic fields to detect metal objects.
It detects radiation levels for monitoring environmental safety.
It uses electromagnetic waves to measure the weight of objects.
A magnetometer detects magnetic fields and can effectively identify metal objects, making it suitable for use in security screenings.
The other options do not accurately describe the functionality of a magnetometer. For instance, while a metal detector also identifies metal, it is a different type of device that uses electromagnetic fields, which may lead to confusion in this context.
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