Multiple choice

The electron microscope was discovered by

  1. Robert Hook

  2. Swanson, C. P

  3. Rudolf and Kolliker

  4. Knoll and Ruska
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The first electron microscope was developed by Max Knoll and Ernst Ruska at the Technical University of Berlin in 1931. This invention revolutionized biological and material imaging.

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