Question

15. The main scale readings of a vernier calipers
(1 M.S.D. = 1 mm) having least count 0.01 cm for
the internal and external diameters of a hollow tube
are 11 mm and 12 mm. The minimum thickness of
the tube is
(a) 1 mm
(b) 0.1 mm
(c) 0.05 mm
(d) 0.5 mm​

Answer 1

Explanation:

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