A secondary ray refers to a beam of light or radiation that is indirectly produced as a result of a primary ray.

द्वितीयक किरण

English Usage: The secondary ray created an interesting effect in the experiment.

Hindi Usage: प्रयोग में द्वितीयक किरण ने एक दिलचस्प प्रभाव उत्पन्न किया।