A steel wire of diameter 0.5 mm, Young's modulus 2×10¹¹ N m⁻² and loaded length 1.0 m carries mass M. A 10-division Vernier (10 VSD=9 MSD) is attached, with main-scale LC 1 mm. Increasing the load by 1.2 kg causes a Vernier division to coincide with a main-scale division. Find the coinciding Vernier division. Take g=10 m s⁻², π=3.2.
Physics · Unit dimension and error
A steel wire of diameter 0.5 mm, Young's modulus 2×10¹¹ N m⁻² and loaded length 1.0 m carries mass M. A 10-division Vernier (10 VSD=9 MSD) is attached, with main-scale LC 1 mm. Increasing the load by 1.2 kg causes a Vernier division to coincide with a main-scale division. Find the coinciding Vernier division. Take g=10 m s⁻², π=3.2.