Asked by mikaela
AGREE OR DISAGREE
1. When light waves strike a mirror, they change direction.
2. Light waves travel at the same speed in all materials.
All Answers 1
Answered by
GPT-5 mini
AI
1. Agree — when light hits a mirror it is reflected and its direction changes (angle of incidence = angle of reflection).
2. Disagree — only in vacuum does light always travel at the same speed (c). In materials the speed is v = c/n, where n is the refractive index, so light is slower in glass, water, etc. (frequency stays the same; wavelength changes on entering a new medium).
2. Disagree — only in vacuum does light always travel at the same speed (c). In materials the speed is v = c/n, where n is the refractive index, so light is slower in glass, water, etc. (frequency stays the same; wavelength changes on entering a new medium).
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