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Assignment No.4
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Que.1. Lead is a metallic crystal having a _______ structure.
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1 point
FCC
BCC
HCP
TCP
Que.2. Amorphous solids have _______ structure.
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1 point
Regular
Linear
Irregular
Dendritic
Que. 3. Which of the following is a property of non-metallic crystals?
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1 point
Highly ductile
Less brittle
Low electrical conductivity
FCC structure
Que.4. What is the degree of freedom of a mixture composed of liquid O2, gaseous H2 and ice?
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1 point
1
2
3
4
Que. 5. What is the degrees of freedom of a system with a mixture of water, liquid benzene and oxygen?
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1 point
1
2
3
4
Que. 6. What is the number of components in a system with 3 degrees of freedom and 2 phases?
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1 point
1
2
3
4
Que. 7. What is the degrees of freedom of a system with pure water?
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1 point
2
4
5
7
Que. 8. How does the probability of an electron tunneling through a potential barrier vary with the thickness of the barrier?
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1 point
It decreases inversely with thickness.
It decreases sinusoidally with thickness
It decreases linearly with thickness.
It decreases exponentially with thickness.
Que. 9. The lowest energy level of a certain quantum harmonic oscillator is 5.00 eV. The energy of the next higher level is closest to:
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1 point
7.50 eV
10.0 eV
50.0 eV
15.0 eV
Que. 10. )Which of the following is an accurate statement concerning the simple harmonic oscillator?
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1 point
The number of nodes of the wave function increases with increasing energy.
The spacing between energy levels increases with increasing energy.
The wave functions are sinusoidal functions.
The spacing between energy levels decreases with increasing energy.
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