Name the political parties in Russia that had to work underground as the Tsarist rule didn't allow any democracy

Name the political parties in Russia that had to work underground as t

1.	Name the political parties in Russia that had to work underground as the Tsarist rule didn't allow any democracy
Answer» d 1 =10cm=0.1m,v 1 =2m/s,v 2 =4m/sBy the EQUATION of continuity, the ratio of the SPEED ISV 2 v 1 = A 1 A 2 =( d 1 d 2 ) 2 ∴ d 1 d 2 = v 2 v 1 = 42 = 2 1 =0.707∴d 2 =0.707d 1