COT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTION

COT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTION
Question : Visible light lies between what wavelengths
(in nanometers)?
Correct answer: Approximately 400-800 nanometers
Question : The wavelength of light makes a difference in
how the eye perceives it. Which characteristics of visible
light is determined by its wavelength?
Correct answer: Color
Question : Which color has the longest wavelength? The
shortest?
Correct answer: The longest: Red 650 nm-750 nm The
shortest: Blue 446 nm-500 nm
Question : Polarized lenses block all light rays except
those the do what?
Correct answer: Vibrate in the same direction

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