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1
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the volume of unit cell of an element having molar mass $27 \mathrm{~g} \mathrm{~mol}^{-1}$ that forms fcc unit cell. $\left[\rho . \mathrm{N}_{\mathrm{A}}=16.0 \times 10^{23} \mathrm{~g} \mathrm{~cm}^{-3} \mathrm{~mol}^{-1}\right]$

A
$7.50 \times 10^{-23} \mathrm{~cm}^3$
B
$6.75 \times 10^{-23} \mathrm{~cm}^3$
C
$5.75 \times 10^{-23} \mathrm{~cm}^3$
D
$8.25 \times 10^{-23} \mathrm{~cm}^3$
2
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the edge length of fcc unit cell if radius of metal atom is 139 pm .

A
$2.78 \times 10^{-8} \mathrm{~cm}$
B
$3.21 \times 10^{-8} \mathrm{~cm}$
C
$3.93 \times 10^{-8} \mathrm{~cm}$
D
$6.95 \times 10^{-8} \mathrm{~cm}$
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the edge length of bcc unit cell if radius of metal atom is $$227 \mathrm{~pm}$$.

A
$$4.54 \times 10^{-8} \mathrm{~cm}$$
B
$$5.24 \times 10^{-8} \mathrm{~cm}$$
C
$$6.42 \times 10^{-8} \mathrm{~cm}$$
D
$$1.135 \times 10^{-8} \mathrm{~cm}$$
4
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following combinations is an example for construction of n-type semiconductor?

A
Si doped with B
B
Si doped with $$\mathrm{P}$$
C
Si doped with $$\mathrm{Ga}$$
D
Si doped with In
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