Which of the following is not part of the optical spectrum? ∙ a. Infrafed ∙ b. Ultraviolet ∙ c. Visible color ∙ d. X-rays

Which of the following is not part of the optical spectrum?
∙ a. Infrafed  
∙ b. Ultraviolet  
∙ c. Visible color  
∙ d. X-rays
by

1 Answer

Answer :

∙ d. X-rays
by

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