31. A transmission Laue pattern of an iron crystal with a = 2.86 Å is obtained on a
film kept at a distance of 5 cm using 30 kV tungsten radiation. Laue spots
formed by reflecting planes {110} are obtained. Assuming that these planes are
present in the desired orientation, the angle of the orientation is:
(a) 7.88°
(b) 6.88°
(c) 5.88°
(d) 4.88°
32. A transmission Laue pattern of an iron crystal with a = 2.86 Å is obtained on a
film kept at a distance of 5 cm using 30 kV tungsten radiation. Laue spots
formed by reflecting planes {200} are obtained. Assuming that these planes are
present in the desired orientation, the angle of the orientation is:
(a) 11.32°
(b) 10.32°
(c) 9.32°
(d) 8.32°
33. A transmission Laue pattern of a cubic crystal with a = 3 Å is obtained with a
horizontal X-ray beam in the following orientation. The [010] axis of the crystal
points along the beam away from the X-ray tube, [001] points vertically
upwards and [100] is horizontal and parallel to the X-ray film. The crystal to
film distance is 5 cm. Wavelength of the radiation diffracted from the (01 2)
planes for the first-order reflection is:
(a) 1.20 Å
(b) .20 Å
(c) 3.20 Å
(d) 4.20 Å
34. A transmission Laue pattern of a cubic crystal with a = 3 Å is obtained with a
horizontal X-ray beam in the following orientation. The [010] axis of the crystal
points along the beam away from the X-ray tube, [001] points vertically
upwards and [100] is horizontal and parallel to the X-ray film. The crystal to
film distance is 5 cm. Wavelength of the radiation diffracted from the (01 2)
planes for the second-order reflection is:
(a) 0.50 Å
(b) 0.60 Å
(c) 0.70 Å
(d) 0.80 Å
376
9 Determination of Crystal Structure Parameters
film kept at a distance of 5 cm using 30 kV tungsten radiation. Laue spots
formed by reflecting planes {110} are obtained. Assuming that these planes are
present in the desired orientation, the angle of the orientation is:
(a) 7.88°
(b) 6.88°
(c) 5.88°
(d) 4.88°
32. A transmission Laue pattern of an iron crystal with a = 2.86 Å is obtained on a
film kept at a distance of 5 cm using 30 kV tungsten radiation. Laue spots
formed by reflecting planes {200} are obtained. Assuming that these planes are
present in the desired orientation, the angle of the orientation is:
(a) 11.32°
(b) 10.32°
(c) 9.32°
(d) 8.32°
33. A transmission Laue pattern of a cubic crystal with a = 3 Å is obtained with a
horizontal X-ray beam in the following orientation. The [010] axis of the crystal
points along the beam away from the X-ray tube, [001] points vertically
upwards and [100] is horizontal and parallel to the X-ray film. The crystal to
film distance is 5 cm. Wavelength of the radiation diffracted from the (01 2)
planes for the first-order reflection is:
(a) 1.20 Å
(b) .20 Å
(c) 3.20 Å
(d) 4.20 Å
34. A transmission Laue pattern of a cubic crystal with a = 3 Å is obtained with a
horizontal X-ray beam in the following orientation. The [010] axis of the crystal
points along the beam away from the X-ray tube, [001] points vertically
upwards and [100] is horizontal and parallel to the X-ray film. The crystal to
film distance is 5 cm. Wavelength of the radiation diffracted from the (01 2)
planes for the second-order reflection is:
(a) 0.50 Å
(b) 0.60 Å
(c) 0.70 Å
(d) 0.80 Å
376
9 Determination of Crystal Structure Parameters