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Which has higher energy, #lambda# of 674 nm or #lambda# 480 nm?

Answer 1

Recall that we have an energy equation for the energy of light at a given frequency. Moreover, the frequency and wavelength are frequently connected by the speed of light.

#color(green)(E) = hnu = (hc)/color(green)(lambda)#

#=> color(blue)(E prop 1/lambda)#

So, in your opinion, is a lower energy associated with a higher wavelength?

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Answer 2

Mateo Aguilar

Lambda 674 nm is less energetic than lambda 480 nm.

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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.