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8th Class General Knowledge Miscellaneous / विविध Question Bank Science and Technology

  • question_answer
    The first process of photography produced a highly detailed permanent photograph on a silver-plated sheet of copper. It was developed by a Frenchman after whom it was named in 1839. What was this called?

    A)  Calotype                      

    B)  Heliograph       

    C)         Daguerreotype  

    D)         Pantograph

    Correct Answer: C

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