NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Mechanical Properties of Fluids
NEET · Physics · Mechanical Properties of Fluids
Match the column:- ( Column 1 Column 2 (i) For concave meniscus (a)...
Match the column:-
(
)
| Column 1 | Column 2 | ||
| (i) | For concave meniscus | (a) | angle of contact < 90^{\circ} |
| (ii) | For convex meniscus | (b) | angle of contact > 90^{\circ} |
| (iii) | For plane meniscus | (c) | angle of contact = 90^{\circ} |
Options
- A(i) (\rightarrow) (c); (ii) (\rightarrow) (a); (iii) (\rightarrow) (b)
- B(i) (\rightarrow) (a); (ii) (\rightarrow) (b); (iii) (\rightarrow) (c)
- C(i) (\rightarrow) (a); (ii) (\rightarrow) (c); (iii) (\rightarrow) (b)
- D(i) (\rightarrow) (b); (ii) (\rightarrow) (a); (iii) (\rightarrow) (c)
Correct answer
A. (i) (\rightarrow) (c); (ii) (\rightarrow) (a); (iii) (\rightarrow) (b)
Step-by-step solution
1. Concave meniscus
(\rightarrow) Happens when liquid wets the walls (like water in glass).
(\rightarrow) Angle of contact (< 90^{\circ}).
(\rightarrow) So, (i) (\rightarrow) (c).
2. Convex meniscus
(\rightarrow) Happens when liquid does not wet the walls (like mercury in glass).
(\rightarrow) Angle of contact (>90^{\circ}).
(\rightarrow) So, (ii) (\rightarrow) (a).
3. Plane meniscus
(\rightarrow) Neutral case.
(\rightarrow) Angle of contact (=90^{\circ}).
(\rightarrow) So, (iii) (\rightarrow) (b).