SSC CGL 2023 PYQ — Question 33

The correct answer is Option 1, i.e. cosmic radiation

 

• Victor Franz Hess, the Austrian physicist, is renowned for his discovery of cosmic radiation. He made this groundbreaking discovery in 1912 while conducting experiments with a series of high-altitude balloon flights.
• Hess observed that the ionization levels in the Earth's atmosphere increased with altitude, indicating the presence of penetrating radiation from space, which he later identified as cosmic rays. For his contributions to the field, Victor Franz Hess was awarded the Nobel Prize in Physics in 1936.