A) U.V. rays - finger prints detection
B) I.R. rays - Secret writing on ancient walls
C) X- rays - Atomic structure
D) Microwaves - forged document detection
Correct Answer: D
Solution :
[d] Ultraviolet radiations are used in the detection of invisible writing, forged documents, finger prints in forensic lab. While microwaves are used in microwave oven.
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