Q. A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)

• (A) σ(1+ b 2a )
• (B) σ(1+ 2a b )
• (C) σ(1+ b 3a )
• (D) σ(1+ 3a b )