( ( ( ( ( ( ( When ( light ( ( ( strikes ( ( an interface ) ( between ( two substances ) ) ) ) , ) ( in ( general ( some ( may ( be reflected ) ) ) ) ) ) ) ) ( , ( some ( ( absorbed , ) ( some scattered ) ) ) ) ) , ) and ) ( ( the rest ) transmitted ) ) ( -LRB- ( ( also ( see refraction ) ) -RRB- ) ) ) . )
(ROOT (S (S (SBAR (WHADVP (WRB When)) (S (NP (NN light)) (VP (VBZ strikes) (NP (NP (DT an) (NN interface)) (PP (IN between) (NP (CD two) (NNS substances)))) (, ,) (PP (IN in) (NP (NP (NN general)) (SBAR (S (NP (DT some)) (VP (MD may) (VP (VB be) (VP (VBN reflected))))))))))) (, ,) (NP (DT some)) (VP (VBD absorbed) (, ,) (S (NP (DT some)) (ADJP (VBN scattered))))) (, ,) (CC and) (S (NP (DT the) (NN rest)) (VP (VBD transmitted))) (PRN (-LRB- -LRB-) (S (ADVP (RB also)) (VP (VB see) (NP (NN refraction)))) (-RRB- -RRB-)) (. .)))
When light strikes an interface between two substances, in general some may be reflected, some absorbed, some scattered, and the rest transmitted (also see refraction).
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NN light)) (VP (VBZ meets) (NP (NN matter))))) (, ,) (NP (PRP it)) (VP (MD may) (VP (VB be) (VP (VP (VBN reflected)) (, ,) (VP (VBN transmitted)) (, ,) (CC or) (VP (VBN absorbed))))) (. .)))