रेडियों सक्रिय पदार्थ से निकलने वाली किरण है ? - What is a ray emanating from a radioactive substance? - Radion Sakriya Padarth Se Nikalne Wali Kiran Hai ? General Science in hindi, Chemistry Beeta question answers in hindi pdf Gama questions in hindi, Know About Alu General Science online test General Science notes in hindi quiz book Uprokt Sabhi
Very good appp. Helpfull
Option A me alpha hoga elu nahi
एलु नहीं अल्फा होना चाहीऐ वहापर