A → II, Boltzmann constant has dimensions of energy divided temperature, the same as entropy. B→ III Energy density (energy per unit volume) of stretched wire is given as u=
1
2
×Y×σ2 where, Y= Young's modulus, σ= strain. Thus, energy density of a wire is directly proportional to Young's modulus. C→ IV. According to Bohr's Model, angular momentum (L) of moving electron is equal to integral multiple h∕2π. i.e. L=n⋅
h
2π
where, n=1,2,3,4......... where, h is Planck's constant. D→I, Dimensional formula of decay constant and angular velocity is same as [M0L0T−1].