Maharashtra State PSC 2013 Solved Paper

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Question : 55 of 100

Marks: +1, -0

Which of the following statements is not true?

CO2 LASER can be used for cutting stainless steel.
Magnetic Resonance Imaging (MRI) is used) for obtaining detailed images of the brain and it does not use radiation.
RADAR system is used to detect enemy’s missiles.
SONAR technique is used to do gold plating on silver ornaments.

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