Ultraviolet Astronomy — MCQs

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1. Ultraviolet astronomy studies which type of radiation?





2. Ultraviolet (UV) radiation has wavelengths shorter than:





3. The wavelength range of ultraviolet astronomy is approximately:





4. Earth’s atmosphere blocks most ultraviolet radiation because of:





5. UV astronomy must usually be carried out from:





6. Which star is the strongest natural source of ultraviolet radiation?





7. Which mission was NASA’s first dedicated ultraviolet satellite?





8. The International Ultraviolet Explorer (IUE) was launched in:





9. The Galaxy Evolution Explorer (GALEX) was designed to study:





10. The Hubble Space Telescope has instruments for:





11. Which type of celestial object is especially bright in ultraviolet?





12. UV astronomy is crucial for studying:





13. Which region of UV lies closest to visible light?





14. Near-ultraviolet typically covers:





15. Far-ultraviolet typically covers:





16. Extreme-ultraviolet typically covers:





17. The Copernicus satellite was dedicated to:





18. Which element’s absorption lines are commonly studied in UV?





19. The OAO-2 satellite was nicknamed:





20. Ultraviolet astronomy is important for detecting:





21. UV astronomy helps trace the structure of:





22. Which space telescope focused on ultraviolet light for over 18 years?





23. The main limitation of ultraviolet astronomy from Earth is:





24. Which layer of Earth’s atmosphere blocks most ultraviolet?





25. Which instrument aboard Hubble studies UV spectra?





26. The GALEX mission ended in:





27. Which region of UV is most useful for studying interstellar hydrogen?





28. UV astronomy helps in studying:





29. Which NASA mission studied ultraviolet light to map star formation?





30. Far-ultraviolet radiation is particularly important for studying:





31. Which ultraviolet mission was launched jointly by NASA, ESA, and UK?





32. The Copernicus satellite was launched in:





33. Extreme ultraviolet observations are best conducted:





34. UV observations of comets reveal:





35. UV astronomy can help study atmospheres of:





36. The “Lyman-alpha line” studied in UV corresponds to:





37. UV telescopes use special detectors such as:





38. Which ultraviolet mission was decommissioned in 2013?





39. Ultraviolet light is dangerous for humans because it can:





40. Which type of galaxies are brightest in ultraviolet?





41. Ultraviolet astronomy is crucial for identifying:





42. The FUSE satellite was designed to study:





43. FUSE stands for:





44. The FUSE satellite operated between:





45. UV astronomy helps study stellar:





46. The primary reason UV telescopes are in space is:





47. Which satellite studied UV emissions of hot stars in the 1970s?





48. In UV astronomy, the term “extinction” refers to:





49. UV astronomy can detect evidence of:





50. Which upcoming telescope will extend UV observations along with optical?





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