Which UV is almost never observed in nature due to atmospheric absorption?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the Surface Methods - Liquid Penetrant Inspection (LPI) Exam. Utilize flashcards and multiple-choice questions with detailed hints and explanations. Ace your exam with confidence!

Multiple Choice

Which UV is almost never observed in nature due to atmospheric absorption?

Explanation:
Short-wavelength ultraviolet light is largely blocked by Earth’s atmosphere. The ozone layer and other atmospheric gases absorb the highest-energy UV radiation, especially the UVC range (about 100–280 nm). By the time sunlight would reach the surface, UVC is effectively gone, so natural UVC exposure at ground level is essentially nonexistent. In contrast, UVA and UVB do reach the surface, with UVA penetrating deeply and UVB contributing to sunburn and vitamin D production. That’s why the UV almost never observed in nature due to atmospheric absorption is UVC.

Short-wavelength ultraviolet light is largely blocked by Earth’s atmosphere. The ozone layer and other atmospheric gases absorb the highest-energy UV radiation, especially the UVC range (about 100–280 nm). By the time sunlight would reach the surface, UVC is effectively gone, so natural UVC exposure at ground level is essentially nonexistent. In contrast, UVA and UVB do reach the surface, with UVA penetrating deeply and UVB contributing to sunburn and vitamin D production. That’s why the UV almost never observed in nature due to atmospheric absorption is UVC.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy