Cosmic Rays — MCQs

by
50 Score: 0 Attempted: 0/50 Subscribe
1. What are cosmic rays primarily composed of?





2. Who first discovered cosmic rays?





3. In which year were cosmic rays discovered?





4. What was the method Victor Hess used to discover cosmic rays?





5. The majority of cosmic rays are:





6. What percentage of cosmic rays are helium nuclei (alpha particles)?





7. Which type of cosmic ray is most energetic?





8. Cosmic rays that originate outside our galaxy are called:





9. The Sun is a major source of:





10. Which particles are created when cosmic rays collide with Earth’s atmosphere?





11. Secondary cosmic rays are produced:





12. What is the most common detection method for cosmic rays?





13. Which instrument is widely used to detect cosmic rays?





14. Which cosmic ray observatory is the largest in the world?





15. Cosmic rays are deflected by:





16. What is the “knee” in the cosmic ray energy spectrum?





17. Ultra-high-energy cosmic rays can reach energies above:





18. Which space-based experiment studied cosmic rays?





19. Cosmic rays contribute to:





20. Which scientist proposed cosmic rays might come from supernovae?





21. Cosmic rays are classified into how many types?





22. Which cosmic ray particle helped discover antimatter?





23. The first antimatter particle discovered in cosmic rays was:





24. Cosmic rays were key in the discovery of:





25. The primary effect of cosmic rays on spacecraft electronics is:





26. Which atmospheric layer is most affected by cosmic ray ionization?





27. Cosmic rays at Earth’s surface are mostly:





28. The geomagnetic cutoff determines:





29. What protects Earth from most cosmic rays?





30. Cosmic ray intensity is highest:





31. What is the main hazard of cosmic rays for astronauts?





32. Solar energetic particles are especially dangerous during:





33. The study of cosmic rays helps in understanding:





34. Cosmic rays with extremely high energies are suspected to come from:





35. Which isotopes in rocks help trace past cosmic ray flux?





36. Cosmic ray showers at ground level are studied using:





37. Cosmic ray flux decreases with:





38. Which particle dominates secondary cosmic ray showers?





39. Cosmic rays are a significant background for:





40. Which cosmic ray particle is used in cancer therapy?





41. Cosmic ray detection at high altitudes is easier because:





42. The cosmic ray spectrum approximately follows:





43. What is the Greisen–Zatsepin–Kuzmin (GZK) limit?





44. Cosmic rays were first mistaken for:





45. Which Nobel laureate received the prize for cosmic ray discoveries?





46. Cosmic ray research led to the discovery of which particle in 1936?





47. Cosmic rays are also called:





48. Which factor modulates galactic cosmic rays reaching Earth?





49. The effect of cosmic rays on aviation crews is:





50. The study of cosmic rays is important because they:





Leave a Comment

All copyrights Reserved by MCQsAnswers.com - Powered By T4Tutorials