Question

Human eyes are most sensitive to the wavelength of

• A. 1000$A^{\circ }$
• B. 5000$A^{\circ }$
• C. 7000$A^{\circ }$
• D. 20$A^{\circ }$

Answer 1

The correct option is B 5000$A^{\circ }$

The human eye can see lights present only in the visible range of wavelength. The visible range 400 nm (blue light) to 700 nm (red light). But the human eye is most sensitive to green color and the wavelength is 500-555 nm or 5000-5550 Angstrom. That's why we can green as the brightest color.

So the correct option is B.