Related Questions

The coordination number of a face centered cubic space lattice is
A Six
B Twelve
C Eighteen
D Twenty
Body centered cubic space lattice is found in
A Zinc, magnesium, cobalt, cadmium, antimony and bismuth
B Gamma iron, aluminium, copper, lead, silver and nickel
C Alpha iron, tungsten, chromium and molybdenum
D None of the above
Read the following passage carefully and then choose the right word to complete the sentence that follows. Rockets are very expensive as it can be used only once. Appled scientists have therefore develped a reusable space craft called a space shuttle which takes off like a rocket; however, does no get destroyed as it returns to earth. It can also be used to lunch satellired into space, retrieve them from space if any repairing os required and allow around 8 scientists to crryout experiments in space. The space shuttle does not get.
A flattened
B enlarged
C ruined
D developed
How many atoms are there per unit cell in a body centred cubic lattice system?
A 2
B 3
C 4
D 6
Following elements have face-centered cubic structure
A Gamma iron (910°C to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt
B Mg, Zn, Ti, Zr, Br, Cd
C A iron (below 910°C and between 1400°C to 1539°C), W
D All of the above
Two circular dials of exactly the same size are mounted on a wall side by side in such a way that their perimeters touch at one point. Dial 1, which is on the left , spins clockwise around its center , and dial 2 , which is on the right spins counter clockwise around its center . (Assume that there is no friction at the point of contact between the dials.) Each dial is marked on its perimeter at three points that are at equale distances around the points arked ondial 1 are N, O, and P and the points marked on dial 2 are X, Y, and Z. If points O and Z are just meeting at the point of contact between the dials , and if dial 1 spins at the same speed as dial 2, what is the smallest number of revolutions of each dial that will bring O and Z together again?
A 1
B 2
C 3
D 4
The coordination number of body centered atom in cubic structure is
A 4
B 6
C 8
D 10
How many molecules per unit cell are there in a face centred cubic lettice?
A 2
B 4
C 6
D 8
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
A Collection of 16 coins,each with a face value of either 10 paisa or 25 paisa, has a total face value of Tk. 2.35 How many of the coins have a face value of 25 paisa?
A 3
B 5
C 7
D 9

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