Em Waves Question 128
Question: Given below is a list of E.M spectrum and its use. Which one does not match?
Options:
A) U.V. rays - finger prints detection
B) I.R. rays - Secret writing on ancient walls
C) X-rays - Atomic structure
D) Microwaves - counterfeit document detection
Show Answer
Answer:
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.
BETA
