Sunday, October 17, 2021

Sources of Energy | Class 10 | Activity 14.6 with Solution

Sources of Energy | Activities in Text Book with Solution

Activity 14.6

Study the structure and working of a solar cooker and/or a solar water-heater, particularly with regard to how it is insulated and maximum heat absorption is ensured.

Design and build a solar cooker or water-heater using low-cost material available and check what temperatures are achieved in your system.

Discuss what would be the advantages and limitations of using the solar cooker or water-heater.

✅Answer: A solar cooker uses the solar energy to cook the food. 

Components of a solar cooker:
  • A black box: To absorb heat.
  • A glass shield: To trap the heat.
  • A reflecting mirror: To increase the light intensity.
Advantages: Cheap and easy to use.

Limitations:
  • We can not operate in every weather condition.
  • A solar cooker is a bulky appliance. To change its position and place we need a lot of manpower.

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