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Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 Test 1 Read the questions carefully and answer on the backside also. Use the
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formulae given at the end of the exam paper. 1.An atomic plane is shown in the figure below. Each part carries 3 points. (i) Choose the correct values of the intercepts that the plane makes among the following a. 1,1,2 b. ½, -1, 1 c. ½, 1, -1 ( c) (ii) Choose the right Miller indices of the atomic plane shown above, with negative sign meant as a bar for the integer following the negative sign, a. (112) b. (2-11) c. (21-1) (c ) 2. The atomic direction (AB) shown in figure below. Each part carries 3 points. (i) Choose the coordinates of the initial point A from below. a. 0,1,1 b. 0,0,0 c. 0,0,1 (a ) (ii)Choose the coordinates of the final point B from below. a. 0,0,1 b. 0,1,1 c. 1,0,1 (c ) (iii) The Miller indices of the direction, with negative sign taken as the bar for the integer that follows, are . a. [011] b. [1-10] c. [100] (b ) 3. The crystallographic plane with Miller indices (11-2) is under consideration. Each part carries 3 points.
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a. ..................................... b. ...................................... c (i) Choose the intercepts that the plane makes among the following. a. 1,1,0 b. 0,1,-2 c. 1,1,-1/2 (c ) (ii)Choose the correct plane among the above that is described by the Miller indices.. a. b. c. (a ) (iii) Choose a direction contained in the above plane. a. [10-1] b. [111] c. [1-11] (b ) 4. The unit cell dimension of copper is 0.36 nanometers. It takes fcc structure. Choose the shortest distance between the atoms among the following. a. 2.545 nm b. 0.36 nm c. 0.254 nm (c ) 5. The unit cell dimensions of iron is 0.286 nm. It takes the bcc structure. Choose the shortest distance between the atoms among the following. (3 points) a. 0.202 nm b. 0.248 nm c. 0.286 nm ( b) 6. X-ray diffraction of iron powder was taken using Cu Ka raduation with wave length l=0.154 nm. The lattice parameter of iron is
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