Question

A steel wire of diameter 0.5 mm and Young’s modulus 2 x 10¹¹ Nm⁻² carries a load of mass M. The length
of the wire with the load is 1.0 m. A vernier scale with 10 divisions is attached to the end of this wire. Next
to the steel wire is a reference wire to which a main scale, of least count 1.0 mm, is attached. The 10
divisions of the vernier scale correspond to 9 divisions of the main scale. Initially, the zero of vernier scale
coincides with the zero of main scale. If the load on the steel wire is increased by 1.2 kg, the vernier scale
division which coincides with a main scale division is __________. Take g = 10 ms⁻² and is ???? = 3.2

Answer 1

Answer:

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Answer 2

Answer:

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