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One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. Having recently studied optics in your physics class, you're not too surprised to see that the patch of light seems to be a circular diffraction pattern. It appears that the central maximum is about 3 cm across, and you estimate that the distance from the window shade to the wall is about 3 m.

Estimate the average wavelength of the sunlight (in nm).

1 Answer

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Answer:

The average wavelength of the sunlight is 550 nm

Step-by-step explanation:

The average wavelength of the sulight is:


\lambda _(ave)=(\lambda _(i)+\lambda _(f))/(2)

λi = initial wavelength of the sun = 400 nm

λf = final wavelength of the sun = 700 nm

Replacing:


\lambda _(ave)=(400+700)/(2) =550nm

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