Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
419 views
in General by (111k points)
closed by
The sensitiveness of a bubble tube in a level would decrease if:-
1. length of the vapour bubble is increased
2. the radius of curvature of the internal surface of the tube is increased
3. the diameter of the tube is increased
4. the viscosity of the liquid is increased

1 Answer

0 votes
by (108k points)
selected by
 
Best answer
Correct Answer - Option 4 : the viscosity of the liquid is increased

Concepts:

The sensitiveness of a bubble tube depends upon the following: 

  1. The radius of curvature of the internal surface i.e., larger the radius greater is the sensitiveness. 
  2. The diameter of the bubble i.e., the larger the diameter, the greater the sensitiveness. 
  3. The length of the bubble i.e., the larger the length greater is the sensitiveness.
  4. The viscosity and surface tension of the liquid i.e., lesser the viscosity more is its sensitiveness.
  5. Smoothness of the finish of the tube's internal surface i.e., greater the smoothness more is the sensitivity. 
  6. Length of one division i.e., greater the length of one division more is the sensitiveness.

Note:

The sensitivity of the Bubble tube is given by the following expression

\(\alpha = \frac{S}{nD} = \frac{l}{R}\)

Where

α is the sensitivity of the bubble tube i.e. angle of rotation in radian due to one division of movement of the bubble.

n is the divisions moved by bubble.

l is the length of one division.

S is staff intercept and it is given as

S = S2 – S1

S1 is the staff reading when the bubble is exactly at the center or actual staff reading.

S2 is the staff reading when bubble moves some n divisions.

R is the radius of curvature of the Bubble Tube.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...