Question

Some of you wear contact lenses: a contact lens is essentially a plastic disk. If during putting it on a person bend it by 10 degrees and the eye can apply a force of 1N across the entire lens (for this problem the lens is 2 cm in diameter and the bending happens equally on both sides from the center), what is the elasticity of the material? Write down the equation you are using.

Answer 1

I have tried to solve it step-by-step. Hope you like it. Thanks for asking questions.