For a beam having cross-section as T, which is a correct statement ?
1
Shear stress variation is parabolic below Neutral axis and normal stress is linear below Neutral axis.
2
Shear stress variation is linear and normal stress is parabolic below Neutral axis.
3
Both shear and normal stresses are linear along the cross-section.
4
Both shear and normal stresses are parabolic along the cross-section.