Question

22
© A steel wire is rigidly fixed in an aluminium frame of same length at 30 °C. If the temperature is raised
to 130 °C. stress in steel wire is [on = 23 x 10*°C,,= 11 x 10°CYucel = 2 x 10" pa]
(A) 1.2 x 10 pa (B) 2.4 x 10 pa
(C) 1.6 x 10 pa
there should be a constant difference in length of 10
(D) 6 x 10-15
pa

Answer 1

Answer:

option c = 1.6x10' pa