Some mustard oil is kept in a beaker. It will exert pressure :

Options

A. downwards only
B. sideways only
C. upwards only
D. in all directions

Answer

To solve the question, "Some mustard oil is kept in a beaker. It will exert pressure:", we will analyze the behavior of fluids and how they exert pressure.

### Step-by-Step Solution:

1. **Understanding Fluid Behavior**:
- Mustard oil is a fluid. Fluids, by their nature, can flow and take the shape of their container.

2. **Pressure in Fluids**:
- Fluids exert pressure in all directions. This is a fundamental property of fluids. When a fluid is at rest, the pressure it exerts is transmitted equally in all directions.

3. **Direction of Pressure**:
- When mustard oil is placed in a beaker, it exerts pressure downwards (on the bottom of the beaker), upwards (on the surface of the oil), and sideways (on the walls of the beaker).

4. **Conclusion**:
- Since the pressure exerted by the mustard oil acts in all directions (downwards, upwards, and sideways), the correct answer is that it exerts pressure in all directions.

### Final Answer:
Mustard oil in a beaker will exert pressure in **all directions**.

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