Consider the following critical minerals : I. Neodymium II. Tellurium III. Dysprosium IV. Gallium Which of the above minerals are not used for the production of photovoltaic cells used in solar panels?

  1. A. I and IV
  2. B. II and III
  3. C. I and III
  4. D. II and IV

Correct Answer: C. I and III

Explanation

Neodymium and Dysprosium are rare-earth elements heavily used in powerful permanent magnets (such as for wind turbines and electric vehicles), but not typically in photovoltaic cells. Tellurium and Gallium are widely used in thin-film solar panels.

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