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duonghathuylinh duonghathuylinh
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6 years ago
High frequency gratings have
 
  a. few bars within a given distance.
 b. many bars within a given distance.
 c. large differences in intensity between adjacent bars.
 d. small differences in intensity between adjacent bars.
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summer123summer123
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6 years ago
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6 years ago
Good timing, thanks!
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Correct Slight Smile TY
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2 hours ago
This helped my grade so much Perfect
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