A rigid bar is supported by a spring as shown in the given figure.The deflection of the point B will be-A-10 mm upwardB-20 mm downwardC-5 mm upwardD-40 mm downward.-D-40 mm downward.

D 40 mm downward. The Force in spring F = (500x2L)/L = 1000N. Deflection in the spring δ = F/k = 1000/50 = 20mm. Deflection at the point B = 2δ = 40mm downward.