Question

Which of the following is the correct order of wavelength a) Red > Green>Blue b) Blue >Green >Red c) Violet > Red> Green d) Green> Red> Blue

Answer 1

Answer:

a) Red, Green, Blue is the correct order of wavelength.

Explanation:

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Answer 2

The correct order of wavelength is shown in option (a) Red > Green>Blue

Explanation:

• To identify the correct option we must the wavelength of different color of lights given in the question.
• Accordingly, the wavelength are as follows:

1. Red : 620 - 750 nm
2. Green : 495 - 570 nm
3. Blue : 450 - 495 nm
4. Violet : 380 - 450 nm

(a)  Red > Green>Blue is correct:

• The color of light given in the option are red, green, and blue.
• When we arrange the wavelength in the decreasing order, we get the following order:

$620 - 750 nm > 495 - 570 nm > 450 - 495nm$

• This is in the order of Red > Green>Blue.

(b) Blue >Green >Red is incorrect:

• The entire order is incorrect.
• When we arrange the given colors according to their wavelength, we get red in first position followed by green and in last position blue.

(c) Violet > Red> Green is incorrect:

• The wavelength of violet is less than red and green.
• As it is given as first, this option is incorrect.

(d) Green> Red> Blue is incorrect:

• The wavelength of green is less than red and more than blue.
• As green is coming before red, this option is incorrect.

Final answer:

The order given in (a) Red > Green>Blue is correct.