निम्नलिखित में से किस रंग का तरंगदैर्ध्य अधिकतम होता है ? - Which of the following colors has maximum wavelength? - NimnLikhit Me Se Kis Rang Ka Wavelength AdhikTam Hota Hai ? General Science in hindi, Physics Peela question answers in hindi pdf Hara questions in hindi, Know About Neela General Science online test General Science notes in hindi quiz book Laal