Question

A sonometer wire having cross -sectional area 0.85 into 10power -6 m2 is streached between two rigid support 1.2m apart. a tension 20N applied at its free end If the temprature reduced by 12०C calculate final tension in the wire.take coffiecent of linear expansion( α ) and isothermal young 's
modules( γ )
to be 1.5 into 10 power-5 per K and 2.0into 10power11Nm-2

Answer 1

kindly find attached the solution.This question involves calculus
To give the proper symbol I have uploaded the attachment.