If 550-Nm Light Is Incident Normally on a Diffratction Grating

question 74

Multiple Choice

If 550-nm light is incident normally on a diffratction grating and exactly 6 lines are produced. The ruling eparation must be:

• A) between 2.75 *10^-7 m and 5.50 *10^-7- m
• B) between 5.50 *10^-7 m and 1.10 *10^-7 m
• C) between 3.30 *10^-7 m and 3.85 *10^-7 m
• D) between 3.85 *10^-7 m and 4.40 *10^-7 m
• E) greater than 4.40 *10 ^{- 7} m

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