Physical Optics MCQs For ETEA MDCAT & ECAT Preparation |

[@waqarahmad-zq1mq]

Central spot of newton Rings bright ho ga ya dark depend upon your point of view (up or down) .... but acc. your question dark is the best option

[@seeratfatima3737]

Central spot in newton ring is dark and in diffraction grating bright

[@mantashakhagga9684]

Question nbr 24 Right answer b

[@mantashakhagga9684]

Question nbr 23 how it is possible???

[@adeelahmed5225]

30

[@mantashakhagga9684]

Q 25 Answer none of these

[@kalimullahparacha3224]

29 Ture and 7 wrong

[@mantashakhagga9684]

Question nbr 23 how it is possible???