SAMPLE QUESTIONS FOR SA 1 PHYSICS

QUESTION: Out of two solar cookers, one was covered with a plane glass slab and the other was left open. Which of the two solar cookers will be more efficient and why?

ANSWER
: The solar cooker with the glass slab: as the heat gets trapped within the cooker and the temperature of the cooker rises. It rises more than the uncovered cooker/green house effect.