Question

Question no.5 ka answer dijiy

Answer 1

Answer:

Tension is nothing but force by spring

which is T = kx

Now energy

$E = \frac{1}{2} k {x}^{2} = \frac{1}{2} { { \frac{k}{k} }^{2} }{ {x}^{2} } = {{(kx)}^{2} \over 2k} = \frac{ {T}^{2} }{2k}$