A liquid of density 103 kg/m³ and coefficient of viscosity 8 x 10-² decapoise is flowing in a tube of radius 2 cm with speed 2 m/s. The Reynolds number is
(1) 500
(2) 1000
(3) 1500 dron in the morcury lovel by 10 mm
(4) 2000 more is a sign of​