Multiple choice general knowledge science & technology

I was a 20th century German physicist. I did extensive work on radioactivity with Ernest Rutherford, and devised a formula, named after me, for the velocities of particles. I contributed to the discovery of the atomic nucleus, and participated in Germany's effort to build an atom bomb. The radiation counter I developed and steadily improved upon is still used today. Who am I?

  1. Werner Heisenberg

  2. J. J. Thomson

  3. Niels Bohr

  4. Hans Geiger
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hans Geiger worked with Ernest Rutherford on radioactivity experiments and developed the Geiger counter in 1908, a device that detects and measures ionizing radiation. He also co-developed the Geiger-Marsden experiment (gold foil experiment) which led to the discovery of the atomic nucleus.

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