beam
camera
curve
device
diagram
direction
drawing
education
educational
far away
focal point
focusing
geometry
goggles
graphic
image
laser
learning
lecturer
length
lens
lesson
magnify
magnifying
monochromatic
negative
optic
optical
physics
piece
plane
point
polished
positive
prism
rail
rainbow
refraction
schematic
scheme
school
science
simple
single
specs
transparent
type
vault
virtual
定額
Physics, Light and enlightenment, refraction of light, Convex and Concave Lenses, next generation question template, dumb physics figures, exam question, epsの素材 [FY310187761135]
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