Which one of the following is not true on solar cells?

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Silver is necessary for the interconnection of solar cells, which increases its cost.

Storage batteries are required for a continuous supply of electricity during the night, increasing investment costs.

They are very difficult to install on rooftops or on the ground.

Efficiency is very low compared to other renewable energy systems.

answer is C.

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Detailed Solution

Among the given options, solar cells are very difficult to install on rooftops or on the ground is not true.
Advantages of Solar cells:
●       It has no moving parts and is eco-friendly too.
●       It requires low maintenance.
●       It is easy to install on rooftops or on the ground.
Some of the limitations of solar cell panels are
●       silver is necessary for the interconnection of solar cells, which increases its cost.
●       Storage batteries are required for a continuous electricity supply during the night.
●       Increasing investment costs and efficiency are very low compared to other renewable energy systems.

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