X-rays with a wavelength of 0.0711 nm create a diffraction pattern when they pass through a protein crystal. if the angular spacing between adjacent bright spots (m=0 and m=1) in the diffraction pattern is 28.9°, what is the average spacing between atoms in the crystal?

The average spacing between atoms in the crystal is .

Explanation:

Given that,

Wavelength = 0.0711 nm

Diffraction pattern = 28.9°

We need to calculate the average spacing between atoms in the crystal

Using formula of distance

Here, m = 1

Put the value into the formula

Hence, The average spacing between atoms in the crystal is .

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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