BPSC – Combined Competitive Examination · प्रश्न 133
Which material is used for smart film?
उत्तर दाखवा आणि स्पष्टीकरण
उत्तर: (A) Indium tin oxide
स्पष्टीकरण
Smart (PDLC) films sandwich liquid crystals between ITO-coated layers that carry the switching voltage.
- (A) बरोबर
Correct: ITO is a transparent conductor used in smart (switchable) films and touchscreens.
- (B) चूक
Wrong: not conductive or transparent for this use.
- (C) चूक
Wrong: not used for smart films.
- (D) चूक
Wrong: silica is an insulator, not the electrode layer.