Question

In column I, a uniform bar of uniform cross-sectional area under the application of forces is shown in the figure and in column II, some effects/phenomeno are given. Match the entries in column I and column II.

Answer 1

(A)Since object does not moves tension through the rod remains same and stress$=T/A$ will reman uniform.Stress is clearly compressive.
A->1,3
(B)Similarly as above only the stress is tensile.
B->1,4
(C)Since object is being pulled therefore, tension along the rod decreses therefore, stress$=T/A$ is not uniform.
C->2,4
(D)Since, object is being pushed tension will be uniform therefore, stress will be uniform.
D->1,4