When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?
- A. Visible
- B. Transparent
- C. Invisible
- D. opaque
- E. None of these
Explanation
Dust particles scatter visible light into the observer's eyes, making the otherwise invisible path of the beam appear visible. The option 'visible' is the intended choice, although scattering is the actual mechanism.
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