If angle of tilt is equal to 10 seconds of arc and length of one divis – McqOptions

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1.	If angle of tilt is equal to 10 seconds of arc and length of one division is equal to 2.5 mm in a spirit level then what is radius of tube?
A.	51.5 m
B.	51.5 mm
C.	25.5 m
D.	25.5 mm
Answer» B. 51.5 mm

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