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As CPH has mass, how massless photon is made of two or more CPH?
Answer; The Photon carries energy and energy has mass. But the rest mass of photon is aero. No one can see photon at rest condition. Because the photon product at light's speed conditions, and its elements have mass too.
There isn't any explain that how a photon appears in relativity, but CPH theory explains it.
how faster ultrsonic waves will travel in solids.
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