Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:
a wooden board

Explanation

To classify a wooden board as opaque or transparent, and luminous or non-luminous, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Opaque, Transparent, and Translucent:**
- **Opaque Objects:** These are materials that do not allow light to pass through them. Light cannot be seen through opaque objects.
- **Transparent Objects:** These allow light to pass through and you can see clearly through them.
- **Translucent Objects:** These allow some light to pass through but scatter it, making it impossible to see clearly through them.
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