Question

The wavelength of which colour is minimum?

• A. Violet
• B. Blue
• C. Yellow
• D. Red

Hint:

Wavelength order in visible spectrum (shortest to longest): Violet, Blue, Green, Yellow, Orange, Red.

Answer 1

The Correct Option is A

Among the visible spectrum of light, different colors correspond to different wavelengths. The order from shortest to longest wavelength is: \[ \text{Violet}<\text{Blue}<\text{Yellow}<\text{Red}. \] Violet light has the shortest wavelength (approximately 380–450 nm), which means it has the highest frequency and energy among visible colors. Red light has the longest wavelength (approximately 620–750 nm) and the lowest frequency. Thus, violet light is at the violet end of the spectrum, while red is at the opposite end.