please solve this physics questions
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Answer:
1.845
Explanation:
least count of the screw gauge(l.c)=pitch/number of circular divisions
=>0.5/100 mm
=>0.005 mm
thickness of the glass plate=main scale reading+l.c* nth division coinciding with reference line
=>1.5 mm+ 0.005*69 mm
=>1.5 mm+ 0.345 mm
=>1.845 mm
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