Multiple choice

Which phenomenon causes an air bubble in water to shine?

  1. Dispersion

  2. Refraction

  3. Diffraction

  4. Total internal reflection
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An air bubble shines due to total internal reflection - light entering the bubble at an angle greater than the critical angle gets completely reflected inside, creating a shiny appearance. Dispersion splits light into colors (like rainbows), refraction bends light passing through different media, and diffraction spreads light around obstacles.

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