Chlorophyll-'a' is primary pigment for the light reaction. What are accessory pigments ? What is their role in photosynthesis ?

Explanation

### Step-by-Step Solution:

1. **Identify the Primary Pigment**:
- Chlorophyll 'a' is recognized as the primary pigment involved in the light reactions of photosynthesis. It plays a crucial role in capturing light energy.

2. **Define Accessory Pigments**:
- Accessory pigments are additional pigments that assist in the process of photosynthesis but are not directly involved in the emission of excited electrons. They complement the primary pigment by capturing light energy.

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