Navigate

If a spring of spring constant k stretched by a length x under tension T, the energy

If a spring of spring constant k stretched by a length x under tension T, the energy stored is

Options

(a) 2k/T²
(b) 2T²/k
(c) T²/2k
(d) 2T/k²

Correct Answer:

T²/2k

Explanation:

Energy stored in the spring, U = (1/2).kx²
Since T = kx, .·. U = (1/2) k (T/k)² = T²/2k.

OA2006
admin:

Related Questions

  1. A Gaussian surface in the cylinder of cross-section πa² and length L is immersed
  2. An object of mass 3kg is at rest. Now a force F=6t² i⃗+4t j⃗ is applied on the object
  3. In an L-C-R series resonant circuit, the capacitance is changed from C to 4C.
  4. A body projected vertically from the earth reaches a height equal to earth’s radius
  5. An open knife edge of mass 200g is dropped from height 5m on a cardboard