i.e. R1=R2=R or, v1t1=v2t2 ......(i) Where v1= velocity of efflux at A=√(2gh1) and v2= velocity of efflux at B=√(2g(H−h2) t1= time of fall water stream through A=√(
2(H−h1
g
) t2= time of fall of the water stream through B=√
2h2
g
Putting these values is eqn (i) we get (H−h1)h1=(H−h2)h2 or [H−(h1+h2)][h1−h2]=0 Here, H=h1+h2 is irrelevant because the holes are at two different heights. Hence h1=h2 or,