A rainbow can be seen in the sky

Options

A. when the sun is in front of you
B. when the sun is behind you.
C. when the sun is overhead
D. only at the time of sun rise

Answer

To determine when a rainbow can be seen in the sky, we need to consider the conditions required for its formation. Here’s a step-by-step explanation:

### Step 1: Understand the Formation of a Rainbow
A rainbow is formed when sunlight is refracted, reflected, and dispersed in water droplets. This process creates a spectrum of light that appears as a circular arc in the sky.

### Step 2: Identify the Required Conditions
For a rainbow to be visible, two main conditions must be met:
1. **Presence of Water Droplets**: There must be water droplets in the air, which can be from rain, mist, or spray.
2. **Sunlight**: The sun must be shining.

### Step 3: Determine the Position of the Sun
The position of the sun relative to the observer is crucial:
- A rainbow is typically seen when the sun is behind the observer. This means that the sunlight is coming from behind the person looking at the rainbow.
- The observer must be facing the area where the rainbow is formed, which is opposite to the sun.

### Step 4: Consider the Sun’s Altitude
The sun should not be too high in the sky. It is best seen when the sun is at a lower altitude, such as during the early morning or late afternoon.

### Conclusion
Based on these conditions, a rainbow can be seen when the sun is behind the observer. Therefore, the answer to the question is:

**The rainbow can be seen when the sun is behind you.**