For a laminated spring, l = length, n = number of plates, width of each plate = b, thickness of each plate = t, central point load = W, what is the expression for the maximum bending stores ?

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1545-1.png">
• B. * 2
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1545-2.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1545-3.png">
• E. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1545-1.png">