Wavelengths are measured in nanometers (nm). Each color on the visible spectrum has a different wavelength. The human eye is only able to distinguish wavelengths between 400-750 nm. The approximate wavelengths of the visible spectrum are shown below:If you were reading a scientific report, and it referred to a wavelength of 455 nm, which color would it be referring to?
Correct answer: C. Blue
- A. Violet
- B. Ultraviolet
- C. Blue
- D. Green
Explanation
Reading the spectrum provided in the question, it is evident that a wavelength of 455nm refers to the colour that lies in between 400nm (Violet) and 500nm (Green), which is blue. Therefore, the answer is C.
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About Scientific Reasoning
Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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