Answer & Solution
Answer: Option
B
Solution:
Let's break down this question about fluids (like water) in a cup when they're not moving (at rest).
Statement 1: Pressure is same at all the points in the fluid.
This isn't quite right. While the pressure is uniform *horizontally* at a given depth, it increases with depth due to the weight of the fluid above. So, this statement is partially correct but not entirely true in general.
Statement 2: Pressure is exerted on the walls.
This is absolutely correct. The fluid pushes against the walls of the cup.
Think of it like tiny particles constantly bumping into the walls.
Statement 3: Pressure exists everywhere in the fluid.
This is also correct. Pressure isn't just on the walls; it's throughout the entire fluid.
Imagine a tiny bubble inside the fluid; the fluid is pushing on all sides of the bubble.
Therefore, statements 2 and 3 are definitely true.
Statement 1 is not entirely correct because it doesn't account for the pressure increase with depth.
Now let's look at the options:
A: 1 and 2 (Incorrect because 1 is not fully correct)
B: 2 and 3 (Correct!)
C: Only 1 (Incorrect because 1 is not fully correct, and other statements are also true)
D: 1, 2 and 3 (Incorrect because 1 is not fully correct)
So, the correct answer is Option B: 2 and 3
