A simple pendulum has a period of 2 s for small amplitude oscillations. 1. The length of the pendulum is most nearly (A) l/6 m (B) ¼ m (C) ½ m (D) 1 m (E) 2 m I used the period of a pendulum equation, did some algebra, and got D as the answer. Is this correct? 2. Which of the following equations could represent the angle θ that the pendulum makes with the vertical as a function of time t? (A) θ = θmax sin (π/2)t (B) θ = θmax sin πt (C) θ = θmax sin 2πt (D) θ = θmax sin 4πt (E) θ = θmax sin 8πt I don't get this one. I'm assuming it's C because 2π = ω in a lot of equations and maybe it's true here too? Can someone please explain this?