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Kelly Green

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## Homework Statement

Explain using word, diagrams, and/or calculations..

(1) Why must n always be <= 2d/λ?

(2) If λ is significantly greater then d, why will no diffraction occur?

## Homework Equations

Bragg's Law nλ=2dsinθ

n has its maximum when sinθ is 1 (at 90°)

## The Attempt at a Solution

I am taking an X-Ray Analytical Methods course. I understand the general concept of Bragg's Law, but am having a hard time answering / proving the two questions above, perhaps I am over thinking it? Any feedback and/or direction would be greatly appreciated.

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