A student has set up a solar cooker in a box using a black painted aluminium sheet, a black cooking vessel, some glass wool , a transparent glass sheet and a mirror plate. What is the role of black paint, transparent glass sheet and a mirror used in the solar cooker ?

Explanation

To solve the question regarding the roles of black paint, transparent glass sheet, and mirror in a solar cooker, we can break it down into three parts, one for each component.

### Step-by-Step Solution:

1. **Role of Black Paint:**
- The black paint is used on the aluminum sheet and the cooking vessel because black surfaces are excellent absorbers of heat.
- Black paint absorbs more solar radiation compared to any other color, which allows the solar cooker to capture and retain heat effectively.
- This property helps maintain a higher internal temperature, which is essential for cooking food.
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