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JEE Advanced 2014Paper 2
Exam
JEE Advanced
Year
2014
Paper
Paper 2
Subject
Physics
Chapter
Laws of Motion

JEE Advanced 2014 · Paper 2 · Physics · Laws of Motion

A person in a lift is holding a water jar, which has a small hole...

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 answer using the code given below the lists.
List I List II
A. Lift is accelerating vertically up. P.P. d=1.2md = 1.2m
B. Lift is accelerating vertically down with an acceleration less than the gravitational acceleration. Q.Q. d>1.2md > 1.2m
C. Lift is moving vertically up with constant speed. R.R. d<1.2md < 1.2m
D. Lift is falling freely. S.S. No water leaks out of the jar

Options

  1. Aa-s;b-r;c-q;d-p;
  2. Ba-p;b-p;c-p;d-s;
  3. Ca-p;b-s;c-q;d-r;
  4. Da-q;b-p;c-s;d-r;

Correct answer

B. a-p;b-p;c-p;d-s;

Step-by-step solution

In P, Q, R no horizontal velocity is imparted to falling water, so d remains same.
In S, since its free fall, aeff=0{a}_{eff} = 0
∴∴ liquid won't fall with respect to lift.
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