Electrostatic detection apparatus (ESDA) is used to study indented
Question and options
Electrostatic detection apparatus (ESDA) is used to study indented
- handwriting
- fingerprints
- footprints
- tyre marks
Answer and explanation
Correct answer: A - handwriting
ESDA (electrostatic detection apparatus) reveals indented writing impressions on paper. The pressure of writing on an overlying sheet leaves invisible indentations that the apparatus shows up; fingerprints, footprints and tyre marks are examined by other methods.
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