Answered

What is the energy of a single photon of blue light with a wavelength of 488 nm?


3.24 x 10-31 J


3.24 x 10-40 J


4.08 x 10-28 J


4.08 x 10-19 J

Verified Answer :

We know, Frequency = speed of light / wavelength
f = 3 10^8 / 4.88 10-7
f = 6.1 10^14

Now, Energy = Planck's constant frequency
E = 6.62607004 × 10-34  6.1 10^14
E = 4.08 * 10^-19 J

In short, Your Answer would be Option D

Hope this helps!

The answer is choice D

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