Question

Find the length of a simple pendulum whose time period is 4 sec. [Take g = π^2 m/s^2]​

Answer 1

Answer:

Use T = 2π √( l / g )

Plug in the values, (you can square both sides for easier calculations & eliminating the square root though)

Here you get the final result as ,

Length = 0.9929476 m ≈ 1 m

Hope this helps!