Create an ORIGINAL simple teaching diagram, not a copy of an NCERT illustration: white LED torch on left, opaque RED card in middle, WHITE screen on right with a DARK shadow. Label all parts. Use ideal straight boundary rays from one source point past the card edges to the screen. No rays through the opaque card. State: illustration, not measurement. Include a second comparison with the same card nearer the source, torch and screen fixed: shadow must be larger. White illumination, not coloured filters. Return an editable SVG and PNG if supported; otherwise give SVG text only and do not claim an attachment. Teacher checks order, colour, geometry, labels and source consistency before use.
