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Shadows and Images

Simone was de...

Question

Simone was decorating her room with red,blue and green coloured bulbs for her birthday party.she found her shadow on the whitewall of the room in pink colour.why the shadow was not black?can coloured shadow be formed?

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Solution

Dear Student ,

$N o t a l l s h a d o w s a r e b l a c k . W h e n l i g h t s o f d i f f e r e n t c o l o r s s h i n e o n t h e s a m e s p o t o n a w h i t e s u r f a c e, t h e l i g h t r e f l e c t i n g f r o m t h a t s p o t t o y o u r e y e s i s c a l l e d a n a d d i t i v e m i x t u r e b e c a u s e i t i s t h e s u m o f a l l t h e l i g h t . W e c a n l e a r n a b o u t h u m a n c o l o r p e r c e p t i o n b y u \sin g c o l o r e d l i g h t s t o m a k e a d d i t i v e c o l o r m i x t u r e s . C o l o u r e d s h a d o w s c a n n o t b e f o r m e d .$

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