Consider a diffraction pattern produced by a diffraction grating with the outer

Question

Consider a diffraction pattern produced by a diffraction grating with the outer half of the lines covered up with tape. How would the diffraction pattern change when the tape is removed?

A : The half widths would stay the same, the separation of lines would increase, and the lines will remain in place.

B : The half widths would decrease, the separation of lines would stay the same, and the lines will remain in place.

C : The half widths would increase, the separation of lines would stay the same, and the lines will all shift left.

D : The half widths would decrease, the separation of lines would stay the same, and the lines will all shift right.

Explanation / Answer

The correct option is B

The half widths would decrease, the separation of lines would stay the same, and the lines will remain in place.

Because,

When you remove the cover the half widths would decrease, and there will be no change in the line seperation.

According to Bragg's law, we can understand the situation

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