Infrared Astronomy — MCQs

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1. Infrared astronomy studies which part of the electromagnetic spectrum?





2. Infrared radiation has wavelengths longer than:





3. Infrared astronomy is most useful for studying:





4. The Earth’s atmosphere strongly absorbs:





5. Most infrared observatories are located:





6. Which infrared telescope was launched in 2003 by NASA?





7. Which telescope was the first space-based infrared observatory?





8. The James Webb Space Telescope specializes in:





9. Infrared radiation is commonly associated with:





10. The wavelength range of infrared radiation is approximately:





11. Infrared astronomy helps detect:





12. Which infrared telescope operated between 2009–2013?





13. Herschel Space Observatory was launched by:





14. Which country launched the AKARI infrared telescope?





15. Infrared observations are difficult on Earth due to:





16. Which infrared telescope was placed in Earth orbit in 1983?





17. Infrared detectors must be kept:





18. Cooling of infrared telescopes is usually achieved using:





19. Infrared astronomy is especially important for studying:





20. The Stratospheric Observatory for Infrared Astronomy (SOFIA) used:





21. The aircraft used for SOFIA was a modified:





22. Which of the following objects emits strong infrared radiation?





23. Brown dwarfs are best studied in:





24. Which part of the electromagnetic spectrum lies just beyond infrared?





25. A major advantage of infrared astronomy is the ability to:





26. Which space telescope contributed to infrared surveys of galaxies?





27. What does “thermal infrared” primarily detect?





28. Which telescope is often called the “successor of Spitzer”?





29. In astronomy, the near-infrared range is closest to:





30. Infrared space telescopes must often be placed:





31. Which of the following cannot be studied effectively with infrared astronomy?





32. Which space mission discovered thousands of asteroids in infrared?





33. WISE stands for:





34. Infrared astronomy allows the study of:





35. The Milky Way center is best observed in:





36. The “infrared window” in Earth’s atmosphere corresponds to:





37. Near-infrared is typically between:





38. Mid-infrared is in the range of:





39. Far-infrared covers:





40. Which space telescope mapped the sky in infrared in 2010?





41. Infrared detectors are often made of:





42. Infrared astronomy helps in studying exoplanets by:





43. Which type of telescope can observe both optical and infrared wavelengths?





44. Herschel telescope was named after:





45. William Herschel is credited with discovering:





46. Which year did William Herschel discover infrared radiation?





47. Infrared astronomy is crucial for:





48. Which telescope retired in 2022 after 13 years of operation?





49. The far-infrared spectrum is often used to study:





50. Which type of celestial object is nearly invisible in optical but bright in infrared?





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