The light rays from an object have been reflected towards an observer from a standard flat mirror, theimage observed by the observer are :-
A.Real
B.Freet
C.Smalten size then object
D.Laterally inverted

Options

A. `B` and `C` only ``
B. `A,C` and `D` only ``
C. `B` and `D` only `
D. `A` and `D` only

Answer

To solve the question regarding the properties of images formed by a flat mirror, we will analyze each option based on the characteristics of images formed by plane mirrors.

### Step-by-Step Solution:

1. **Understanding Image Formation by a Plane Mirror**:
- A plane mirror forms images based on the laws of reflection. The image formed is virtual, meaning it cannot be projected on a screen, and is located behind the mirror.

2. **Analyzing Each Option**:
- **Option A: Real** - This is incorrect. The image formed by a flat mirror is virtual, not real.
- **Option B: Erect** - This is correct. The image formed by a plane mirror is always erect (upright).
- **Option C: Smaller in size than the object** - This is incorrect. The size of the image in a plane mirror is the same as that of the object.
- **Option D: Laterally inverted** - This is correct. The image formed by a plane mirror is laterally inverted, meaning it is flipped horizontally.

3. **Conclusion**:
- The correct properties of the image formed by a flat mirror are that it is erect (Option B) and laterally inverted (Option D). Therefore, the correct options are B and D.

### Final Answer:
The correct options are **B (Erect)** and **D (Laterally inverted)**.