2. Sample Papers
  3. 9th Class
  4. General Knowledge

9th Class General Knowledge Sample Paper General Knowledge Olympiad Model Test Paper-13

  • question_answer
    'Pyrheliometer' is used for measuring

    A)  Sun spots

    B)  Solar radiation

    C)  Air temperature

    D)  Temperature of plants

    E)  None of these

    Correct Answer: B

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