Okuma AnlamaSoru #11107
JWST: A New Window to the Cosmos
The James Webb Space Telescope (JWST), launched in late 2021, represents a monumental leap in observational astrophysics. Unlike the venerable Hubble Space Telescope, which observed primarily in visible and ultraviolet light, JWST is optimized for the infrared spectrum. This allows it to penetrate obscuring cosmic dust veils and capture the faint, redshifted light emitted by the earliest stars and galaxies that formed shortly after the Big Bang. Stationed at the second Lagrange point (L2), approximately 1.5 million kilometers from Earth, JWST is equipped with a five-layer tennis-court-sized sunshield to keep its instruments near absolute zero, ensuring thermal noise does not distort delicate readings. According to the passage, the primary design advantage of the James Webb Space Telescope over Hubble is that ----.
- A)it requires no thermal shielding against intense solar radiation
- B)it orbits Earth at a much closer altitude for easy servicing by astronauts
- C)it uses traditional glass lenses rather than beryllium gold-coated mirrors
- D)it was constructed at a fraction of the cost of previous space missions
- E)it operates primarily in the infrared spectrum to peer through dense cosmic dust
Cevabı ve çözümü göster
Doğru cevap: E) it operates primarily in the infrared spectrum to peer through dense cosmic dust
Çözüm: Paragrafta JWST'nin kızılötesi (infrared) gözlem yeteneği sayesinde kozmik toz bulutlarının ardını görebildiği ve Hubble'dan ayrıldığı belirtilmiştir. Doğru cevap E'dir.