Diso the excitation of a three-dimensional number k are related by o c k2 in behaviour of the specific heat of (a) (c) sol. (c) solid are bosoniccin ature with

diso The excitation of a three-dimensional number k are related by o c k2 in behaviour of the specific heat of (A) (C) Sol. (C) solid are bosoniccin ature with theit fre in the large wavelength limit. the chemical o (C of the system at low temperature is propoti (B) T T12 (D) T3 T2 o ck ho oc (hk)2 E OC p Density of states 4TV D(E) p dp ep de pdp de E D)-Ve; EJeD(e)del(e-1) BEX E32 X2 R3 E xdx how this term comes. sir please explain each step