Electron microscope was invented by _________________? — Answer & Explanation | PrepBeePakistan

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Electron microscope was invented by _________________?

Correct answer: A

Explanation

The electron microscope was indeed invented by Ernst Ruska and Max Knoll in 1931. The option 'Knoll and Risks' appears to be a typo for 'Knoll and Ruska', but it is the intended correct answer among the choices.

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