Sawaal
3
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) 200 nm and 500 nm B) 500 nm and 1000 nm
C) 500 nm only D) 200 nm and 1000 nm

Answer:   C) 500 nm only



Explanation:
Visual image of human eye is 390-700 nanometer. So, approximate value is 500 nanometer only.
Subject: Physics
Exam Prep: Bank Exams
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