Which of the following statements about a fluid at rest in a cup is/are correct? 1. Pressure is same at all the points in the fluid. 2. Pressure is exerted on the walls. 3. Pressure exists everywhere in the fluid. Select the correct answer using the code

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Q: 32 (NDA-I/2018)

Which of the following statements about a fluid at rest in a cup is/are correct?
1. Pressure is same at all the points in the fluid.
2. Pressure is exerted on the walls.
3. Pressure exists everywhere in the fluid.
Select the correct answer using the code given below :

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,10,21,6,10,0,15

keywords: 

{'pressure': [0, 0, 0, 1], 'cup': [1, 0, 0, 2], 'fluid': [1, 0, 1, 6]}

The correct answer is option 2, which states that statements 2 and 3 are correct. Let`s dissect each option to understand why:

Option 1: This option states that statements 1 and 2 are correct. Statement 1, which says that pressure is the same at all points in the fluid, is incorrect. Pressure in a fluid at rest is not the same at all points. It depends on the depth or height of the fluid column, as determined by the gravitational force acting on it. Therefore, statement 1 is incorrect. Statement 2, which says that pressure is exerted on the walls, is correct. When a fluid is at rest in a cup, the weight of the fluid exerts pressure on the walls of the container.

Option 2: This option states that statements 2 and 3 are correct. Statement 2, as explained above, is correct. Statement 3, which says that pressure exists everywhere in the fluid, is also correct. Pressure exists at all points within the fluid because the weight of the fluid above any point exerts a downward force, resulting in pressure at that point.

Option 3: This option states that statement 1 is correct. As mentioned earlier, statement 1 is incorrect, so this