Question

Atomic packing factor for a face centred cubic cell is

Solution

Correct option is

For fcc structure , no of atomic in unit cell = 4

Where a is lattice parameter.

SIMILAR QUESTIONS

Q1

Which of the following gates corresponds to the truth table given below?

            

 A        B

 Y

 0         0

 1

 0         1

 0

 1         0

 0

 1         1

 1

 

 

Q2

The combinations A and B of the NAND gates are shown below. Combinations (A) and (B) are equivalent to

                                          

Q3

The truth table below is for

  

  A        B

 Y

  0         0

  1

  0         1

  0

  1         0

  0

  1         1

  1

 

 

Q4

In the binary number system, the number 11 stands for 

Q5

In the binary number system, the number 1101 implies

Q6

In Boolean algebra X = A + B implies that

Q7

In a NOT gate, if the input signal is 0, the output signal is

Q8

A block of pure at 300 K has a length of 10 cm and an area of . If a battery of emf 2V is connected across it, what is the electron current? The mobility electrons is 0.14 m2 V–1s–1 and their number .

Q9

What is the number density of donor atoms which must be added to a pure germanium semiconductor to produce an n-type semiconductor of conductivity ? The mobility of electrons in n-type germanium is . Neglect the contribution of holes to conductivity.

Q10

For a transistor, α = 0.9, the volue of β is