The dimensions of surface tension are

(1) MLT-1                 

(2) ML2T-2

(3) ML0T-2                 

(4) ML1T-2This quantity S is the magnitude of surface
tension

Subtopic:  Surface Tension |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A wooden stick 2 m long is floating on the surface of the water. The surface tension of water is 0.07 N/m. By putting soap solution on one side of the stick, the surface tension is reduced to 0.06 N/m. The net force on the stick due to surface tension will be:

1. 0.07 N 2. 0.06 N
3. 0.01 N 4. 0.02 N
Subtopic:  Surface Tension |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Surface tension may be defined as 

(1) The work done per unit area in increasing the surface area of a liquid under isothermal condition

(2) The work done per unit area in increasing the surface area of a liquid under adiabatic condition

(3) The work done per unit area in increasing the surface area of a liquid under both isothermal and adiabatic conditions

(4) Free surface energy per unit volume

Subtopic:  Surface Tension |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The energy needed to break a drop of radius R into n drops of radii r is given by:

1. 4πT(nr2-R2)

2. 43π(r3n-R2)

3. 4πT(R2-nr2)

4. 4πT(r2n+R2)

Subtopic:  Surface Tension |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The potential energy of a molecule on the surface of liquid compared to one inside the liquid is  -
(1) Zero                                             

(2) Smaller

(3) The same                                     

(4) Greater

Subtopic:  Surface Tension |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Two droplets merge with each other and forms a large droplet. In this process

(1) Energy is liberated

(2) Energy is absorbed

(3) Neither liberated nor absorbed

(4) Some mass is converted into energy

Subtopic:  Surface Tension |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Work done in splitting a drop of water of 1 mm radius into 106 droplets is (Surface tension of water =72×10-3 J/m2)

(1) 9.58×10-5 J                 

(2) 8.95×10-5 J

(3) 5.89×10-5 J                   

(4) 5.98×10-5 J

Subtopic:  Surface Tension |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The amount of work done in blowing a soap bubble such that its diameter increases from d to D is (T= surface tension of the solution)

1. 4π(D2-d2)T                     

2. 8π(D2-d2)T

3. π(D2-d2)T                       

4. 2π(D2-d2)T

Subtopic:  Surface Tension |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A spherical drop of oil of radius 1 cm is broken into 1000 droplets of equal radii. If the surface tension of oil is 50 dynes/cm, the work done is 


(1) 18 π ergs                     

(2) 180 π ergs

(3) 1800 π ergs                 

(4) 8000 π ergs

Subtopic:  Surface Tension |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

If the surface tension of a liquid is T, the gain in surface energy for an increase in liquid surface by A is

(1) AT-1                       

(2) AT

(3) A2T                         

(4) A2T2

Subtopic:  Surface Tension |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh