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Diffraction Grating Column1 Column2 Column3 Column4 Column5 Column6 Column7 Column8 Data Calculations λ (nm) lines/mm L (cm) Mode             (m or p) y (cm) Calc. Angle Obs. Angle %D 532 600 600.1 1 104.5 532 600 373.0 1 127.2 532 600 600.1 2 126.4 532 600 373.0 2 289.3 650 600 221.0 1 100.0 650 600 357.9 1 151.1 650 600 221.0 2 417.0 650 600 357.9 2 448.1 Using the part 1 data from your...

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Verified Solution

Question

Physics

Diffraction Grating

Column1

Column2

Column3

Column4

Column5

Column6

Column7

Column8

Data

Calculations

λ (nm)

lines/mm

L (cm)

Mode            (m or p)

y (cm)

Calc. Angle

Obs. Angle

%D

532

600

600.1

1

104.5

532

600

373.0

1

127.2

532

600

600.1

2

126.4

532

600

373.0

2

289.3

650

600

221.0

1

100.0

650

600

357.9

1

151.1

650

600

221.0

2

417.0

650

600

357.9

2

448.1

  • Using the part 1 data from your physics lab abovecalculate the following; calculated angle, observed angle andpercent difference (show all work outside the table)
  • For parts 1, 2, 3, and 4., use L and y to calculate theobserved angle. Excel works in radian mode. You can force it intodegree mode by using: sin(radians(B4)) or degrees(asin(C4/D4))where B4 is your angle in degrees and C4 and D4 would be distancemeasurements.
  • For parts 1, 2, and 3, use the wavelength, order number, etc.,to calculate the expected angle.
  • For parts 1, 2, and 3, calculate the percent difference betweenthe observed and expected angle.

Answer & Explanation Solved by verified expert
3.7 Ratings (288 Votes)
For a grating the observed angle is given byThe theoretical value of angle is    See Answer
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