Q. Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye?
A) 500 nm and 1000 nm
B) 200 nm and 500 nm
C) 200 nm and 1000 nm
D) 500 nm only
✔ Correct Answer: 500 nm only
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