Discussion Forum

A person in a lift is holding a water jar, which has a small hole at the lower end of its side. When the lift is at rest, the water jet coming out of the hole hits the floor of the lift at a distance d of 1.2 m from the person.

 In the following state of the lift's motion is given in List I and the distance where the water jet hits the floor of the lift is given in List II. Match the statements from List I  with those in List II  and select the correct answers using the code given below the lists

Answer:

Explanation:

$d=2\sqrt{h_{1}h_{2}}=\sqrt{4h_{1}h_{2}}$

 This is independent of the value of g

 (P) $g_{eff}> g\Rightarrow d=\sqrt{4h_{1}h_{2}}=1.2 m$

(Q)    $g_{eff}< g\Rightarrow d=\sqrt{4h_{1}h_{2}}=1.2 m$

  (R)    $g_{eff}= g\Rightarrow d=\sqrt{4h_{1}h_{2}}=1.2 m$

 (S)     g_eff   = 0

 No water leaks out of jar. As there will be no pressure difference between top of the container and any other point 

          p₁  =p₂  =p₃  =p₀