A point object is held between two plane mirrors inclined at `45^(@)`. What is the number of images seen ?

Explanation

To determine the number of images formed by a point object placed between two plane mirrors inclined at an angle of \(45^\circ\), we can follow these steps:

### Step 1: Understand the Formula
The formula to find the number of images formed by two mirrors inclined at an angle \(\theta\) is given by:
\[ N = \frac{360}{\theta} - 1 \]
where \(N\) is the number of images and \(\theta\) is the angle between the two mirrors.

### Step 2: Identify the Angle
In this case, the angle \(\theta\) is given as \(45^\circ\).

### Step 3: Substitute the Value into the Formula
Now, we substitute \(\theta = 45^\circ\) into the formula:
\[ N = \frac{360}{45} - 1 \]

### Step 4: Calculate the Value
Now, we perform the division:
\[ \frac{360}{45} = 8 \]
Then, we subtract 1 from this result:
\[ N = 8 - 1 = 7 \]

### Step 5: Conclusion
Thus, the number of images formed when a point object is placed between two plane mirrors inclined at \(45^\circ\) is \(7\).

### Final Answer
The number of images seen is \(7\).

---