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What kind of mirror would be best suited for use in a solar cooker?

  1. Concave
  2. Convex
  3. Plane
  4. None of the above

Answer (Detailed Solution Below)

Option 1 : Concave
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Detailed Solution

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CONCEPT:

  • Solar cooker: It is a device that uses the energy of sunlight to heat or cook food
  • A concave mirror is a mirror whose reflecting surface is toward the center of the curvature. It is also known as a converging mirror.

EXPLANATION:

5bdc3ed33ab59f519adfc67f 16575327801011

  • A solar cooker contains a box made of insulating material, with its inner surfaces blackened. The top is closed by a glass sheet.
  • Concave mirrors are the mirrors best suited to be used in solar cookers because a concave mirror reflects and concentrates solar energy from over a large area into a small area. Therefore option 1 is correct.
  • The temperature at that point increases which heats and cooks the food placed at that point.
  • The efficiency of this solar cooker can be increased by placing a plane mirror at some inclination with the glass top to enhance more trapping of sunlight.
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