Pressure is a scalar quantity because:
| (a) | it is the ratio of force to the area and both force and area are vectors. |
| (b) | it is the ratio of the magnitude of the force to the area. |
| (c) | it is the ratio of the component of the force normal to the area. |
| (d) | it does not depend on the size of the area chosen. |
Choose the correct alterative/s:
| 1. | (b), (c) | 2. | (a), (d) |
| 3. | (b), (d) | 4. | (c), (d) |
Hint: In the case of pressure, we only take the magnitude of the force.
Explanation: Pressure is defined as the ratio of the magnitude of the component of the force normal to the area and the area under consideration. Let a force is applied on a plane surface as shown in the figure.
Then the pressure is given by; \(P = \frac{F_n}{\Delta A}\). As we are considering the component of a force, which is a scalar quantity, therefore it will not have any direction. So, the pressure is a scalar quantity.
Hence, option (1) is the correct answer.
© 2024 GoodEd Technologies Pvt. Ltd.
