Why are reflectors used in a solar cooker?

1. The cooker receives more solar energy than the direct overhead beam alone. 2. Reflectors are mirrors mounted around the cooker. 3. They catch sunlight from angles and reflect it onto the cooker. 4. The cooker therefore receives a more intense beam. 5. So reflectors concentrate sunlight onto the cooker. _Source: syllabus Science Ch 14 'Sources of Energy' (byjus.com extract)_