1.An elastic string (Hooke's law) is l₁ m at tension 4 N and l₂ m at 5 N. Length at tension 9 N isa.5l₁–4l₂b.5l₂–4l₁c.9l₁–8l₂d.9l₂–8l₁Login to continueOnly logged in users canattempt or see the solution.
