A tank with a small hole at the bottom has been filled with water and kerosene (specific gravity 0.8). The height of water is 3 m and that of kerosene 2m. When the hole is opened the velocity of fluid coming out from it is nearly : (take g = 10 ms⁻³ and density of water = 103 kg m⁻³)

(a) 8.5 ms⁻¹
(b)10.7 ms⁻¹
(c)9.6 ms⁻¹
(d)7.6 ms⁻¹