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CBSE Class 10 Answered

what is the wavelenth of white light?is it greater than red?if yes then is it infrared?
Asked by prakamya | 01 Dec, 2009, 04:36: PM
answered-by-expert Expert Answer

 White Light : The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.  Electromagnetic radiation  in this range of wavelengths is called visible light or simply light (white light). A typical human eye will respond to wavelengths from about 380 to 750 nm.

 

Color

Wavelength

Frequency

violet

380–450 nm

668–789 THz

indigo

420–450 nm

668–714 THz

blue

450–495 nm

606–668 THz

green

495–570 nm

526–606 THz

yellow

570–590 nm

508–526 THz

orange

590–620 nm

484–508 THz

red

620–750 nm

400–484 THz

Answered by | 01 Dec, 2009, 05:17: PM

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