Yellow light has a wavelength of about 0.6 of which unit?

AMillimetre

BCentimetre

CKilometre

DMicrometre

Answer & Solution

Correct answer: D. Micrometre

1. Visible wavelengths are extremely small. 2. Yellow light is about 0.6 of a millionth of a metre. 3. That unit is the micrometre. _Source: syllabus Physics Part II, Chapter 10, Wave Optics._

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