If the angle of incidence of a ray is `15^@` , then what will be the angle of reflection?

Options

A. `60^@`
B. `45^@`
C. `30^@`
D. `15^@`

Answer

To solve the question, "If the angle of incidence of a ray is 15°, then what will be the angle of reflection?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Law of Reflection**: The first step is to recall the law of reflection, which states that the angle of incidence is equal to the angle of reflection. This means that when a ray of light strikes a reflective surface, the angle at which it hits the surface (angle of incidence) is the same as the angle at which it bounces off (angle of reflection).

2. **Identify the Given Information**: In this problem, we are given that the angle of incidence (i) is 15°.

3. **Apply the Law of Reflection**: According to the law of reflection:
\[ \text{Angle of Incidence (i)} = \text{Angle of Reflection (r)} \]
Since the angle of incidence is given as 15°, we can substitute this value into the equation.

4. **Calculate the Angle of Reflection**:
\[ r = i = 15° \]
Therefore, the angle of reflection is also 15°.

5. **Conclusion**: The angle of reflection is 15°.

### Final Answer:
The angle of reflection is **15°**.

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