#1 0.8 #2 0,6 #3 0.2 ANGLE TO SCREEN (1 pt) Light from a distant point source is

Question

#1 0.8 #2 0,6 #3 0.2 ANGLE TO SCREEN (1 pt) Light from a distant point source is incident on a narrow slit. The graphs show the intensity on a distant screen as a function of 0. The only difference among the three cases is the width of the slit. The vertical scale has been normalized so that the maximum intensity is the same for all three cases (1) Which curve is produced by the largest slit? A. #1 B.#2 C. #3 D. not enough information (2) Which curve is produced by the smallest slit? C. A. #1 B. #2 C. #3 D. not enough information

Explanation / Answer

1] option C, as per the single slit differaction formula theta = lambda/a, large a will mean smaller theta.

2] option A,  as per the single slit differaction formula theta = lambda/a, small a will mean larger theta.

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