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Why are infra...

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Why are infrared radiations referred to as heat waves also? Name the radiations which are next to these radiations in electromagnetic spectrum having-
(i) Shorter wavelength
(ii) Longer wavelength

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Solution

$D e a r s t u d e n t I n f r a r e d r a d i a t i o n s g e t r e a d i l y a b s o r b e d b y w a t e r m o l e c u l e s i n m o s t m a r t e r i a l s . T h i s i n c r e a s e s t h e i r t h e r m a l m o t i o n a n d h e a t s t h e m u p . 1) V i s i b l e l i g h t 2) M i c r o w a v e s$
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