The bending moment diagram for a beam is given below: The

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The bending moment diagram for a beam is given below: The shear force at sections aa' and bb' respectively are of the magnitude.

1. 100 kN, 150 kN
2. zero, 100 kN
3. zero, 50 kN
4. 100 kN, 100 kN

Correct Option: C

Consider left of α – α'
Shear force = 0
(Since there is uniform bending moment) Consider right bb'
Shear force = change in bending moment
= (200 – 150) kNm = 50 kNm