Question

which type of mirror is best suited for solar cooker - concave,convex or plain ? why

Answer 1

Plain mirror is best suited for solar cooker because the sun light fully emitted to the solar cooker and bake the food.
Plain mirror is better than concave and convex mirror
Solar cooker is only use for summer seasons and sun light day.
They did not use for coludy day.

Answer 2

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Concave mirrors are used in solar cookers. This is because they are the only type of mirrors that reflect sunlight to a single focal point. If you use a convex mirror for your cooker, it will not work since they do not have a focal point. A flat mirror, on the other hand, doesn’t have a focal point; it reflects off all of the incident light on different points which means that it cannot be used to harness solar energy.

Concave mirrors absorb all the incident light and reflect it to a single focal point. This reflected light is very powerful because it carries a lot of thermal energy. The cooking pot is placed on the focal point where the light is concentrated. The energy is powerful enough to smelt weak metals and melt salt.