A rigid beam of negligible weight is supported in a horizontal position by two rods of steel and copper, 2 m and 1 m long having values of cross-sectional area 1 cm2 and 2 cm2 and E of 200 GPa and 100 GPa respectively. A load is applied as shown in the figure below.If the rigid beam is to remain horizontal, then

• A. the forces on both sides should be equal
• B. The force on coper rod should be twice the force on steel
• C. The force on the steel rod should be twice the force on copper
• D. The force P must be applied at the centre of the beam