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Which one of the following waves is used...

Which one of the following waves is used for detecting forgery in currency notes?

A

Ultraviolet waves

B

Infrared waves

C

Radio waves

D

Microwaves

Text Solution

Verified by Experts

The correct Answer is:
A
Ultraviolet waves are used for detecting fake and forged currency . The paper currency. The paper currency has a strip that is embedded in the note. This strip cannot be forged like that in the original currency. So, to check for detecting forgery in currency notes, Ultraviolet waves are used.
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