Measurements - Physicslocker

IGCSE NOTES- PHYSICS. LIGHT. Light is a form of energy. Light is a wave motion, rather like the water waves you see on a pond. Light travels at a very high speed – about million time faster than the speed of sound. Speed of light is 300 million metres per second or 3 x 108 m/s. Ray of light. Light travels in a straight line, called rectilinear. ................
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