MJ20 P12 Q30 Diffraction Grating Graph | May/June 2020 | CAIE A Level 9702 Physics

9702/12/M/J/20: Light of wavelength λ is incident normally on a diffraction grating. The angle between the second-order maximum and the normal to the grating is θ. The variation with sin θ of λ is shown on the graph. How many lines per millimetre are on the diffraction grating? #9702s20p12 #ASsuperpositionP1 #ASdiffractionGratingP1 #Lv2 MJ20 Physics Paper 1 Full Discussion Playlist:    • 9702 MJ20 Papers CAIE Physics   AS 15 #Superposition Playlist:    • Ch8 Superposition | CAIE 9702 AS Physics   Instagram Pocket Guide (  / etphysics  ) More Resources (https://9702-physics.blogspot.com/) Support us! (  / etphysics  ) Tuition/Tutoring inquiries: Email: suitlin@gmail.com Whatsapp: https://wa.me/60126679171 9702_s20_qp12 #CambridgeALevelPhysics