Multiple choice

A cantilever beam of length L is subjected to a moment M at the free end. The moment of inertia of the beam cross section about the neutral axis is l and the Young's modulus is E. The magnitude of the maximum deflection is

  1. $\frac{ML^2}{2EI}$
  2. $\frac{ML^2}{EI}$
  3. $\frac{2ML^2}{EI}$
  4. $\frac{4ML^2}{Ei}$
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