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Laser physics is one of my favorite topics to teach in A Level Physics. A laser works by exciting electrons in atoms to higher energy levels. As they relax and de-excite, they emit photons, which causes lasing. #physics #science #laser | vt.physics
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Laser physics is one of my favorite topics to teach in A Level Physics. A laser works by exciting electrons in atoms to higher energy levels. As they relax and de-excite, they emit photons, which causes lasing. #physics #science #laser | vt.physics
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