Match List I with List IILIST I LIST II A Surface tension 1 kgm−1s−1 B Pressure 2 kgms−1 C Viscosity 3 kgm−1s−2 D Impulse 4 kgs−2
Choose the correct answer from the options given below:
| LIST I | LIST II | ||
| A | Surface tension | 1 | kgm−1s−1 |
| B | Pressure | 2 | kgms−1 |
| C | Viscosity | 3 | kgm−1s−2 |
| D | Impulse | 4 | kgs−2 |
- A-III , B-IV , C-I , D-II
- A-IV, B-III, C-II, D-I
- A-IV , B-III , C-I , D-II
- A-II , B-I , C-III , D-IV
The Correct Option is C
Solution and Explanation
(B) Pressure
(C) Viscosity
(D) Impulse
So A-(IV), B-(III), C-(I), D- (II)
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Concepts Used:
Pressure
Pressure is defined as the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
Everyday examples of pressure are:
- The working of the vacuum cleaner is an example of pressure. The fan inside the vacuum creates a low-pressure region which makes it easy to suck the dust particles inside the vacuum.
- Using a knife for cutting is another example of pressure. The area exposed from the knife is small but the pressure is high enough to cut the vegetables and fruits.
Formula:
When a force of ‘F’ Newton is applied perpendicularly to a surface area ‘A’, then the pressure exerted on the surface by the force is equal to the ratio of F to A. The formula for pressure (P) is:
P = F / A
Units of Pressure:
The SI unit of pressure is the pascal (Pa)
A pascal can be defined as a force of one newton applied over a surface area of a one-meter square.