What kind of mirror - concave,

Question.
What kind of mirror - concave, convex or plane - would be best suited for use in a solar cooker ? Why?

solution:
A concave mirror is best suited for use in a solar cooker. This is because a concave mirror concentrates solar energy from over a large area into a small area (at its focus). As a result, high temperatures can be achieved. Such a mirror is called solar concentrator.

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