Final answer:
When a ray of light collides with another medium, the reflected beam is weaker than the original beam.
Step-by-step explanation:
When a ray of light collides with another medium, it can be reflected or refracted. The strength of the reflected beam depends on the nature of the medium and the angle of incidence. In general, the reflected beam is weaker than the original beam because some of the light energy is absorbed or scattered during reflection.
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