Question

An evacuated thin tube has two tight caps $C_1$ and $C_2$ at its ends. The tube is adjusted as shown in the figure below. Atmospheric pressure = P and density of the liquid = d. Neglect surface tension of liquid. Match the entities of columns

• A. P->3,4;Q->2,4;R->1,5;S->2,3,4,5
• B. P->1,2;Q->1,2;R->1,3,4,5;S->1,3,4,5
• C. P->3,4,5;Q->3,4;R->2,4;S->1,3,5
• D. P->4,5;Q->1,2,3;R->3,4,5;S->2,3,4,5

Answer 1

Answer: (C)

P->3,4,5;Q->3,4;R->2,4;S->1,3,5

Answer 2

The correct matching of the columns is:

• P: $h_1 > \frac{P}{dg}, h_2 = 0$ matches with statements 3, 4, and 5.
• Q: $h_1 > \frac{P}{dg}, h_2 > 0$ matches with statements 3 and 4.
• R: $h_1 < h_2, h_2 > 0$ matches with statements 2 and 4.
• S: $h_1 + h_2 < h_2 > 0$ matches with statements 1, 3, and 5.