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How does red light have a larger wavelength than blue light?

Answer 1

The frequency of light determines its color.

One of the states of light is its analog state or a state in which it looks like a wave. The figure below shows color and its relative wave length.

The determination of wave length is how fast it vibrates in one second. That is measured in meters and is measured from the peak of one wave to the peak of the next. The red end of the spectrum has the greatest distance between waves while the violet end has the least. The picture below shows this in terms of the whole light spectrum.

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Answer 2

Hazel Asher

Because red light has a lower frequency than blue light, it has a larger wavelength than blue light. This is because wavelength increases when frequency decreases and vice versa, as stated in the wave equation (speed = frequency × wavelength).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.