# Physics of Solids Test Online Preparation Mcqs

## Physics of Solids Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. The modulus of elasticity of liquids is:
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. The net charge on n – type material is:
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B.
C.
D.

Question 2 of 15

Question 3 of 15

3. When a force is applied at one end of an elastic wire, it produces a strain c in the wire. If y is the young’s modulus of the material of the wire, the amount of energy stored per unit volume of the wire is given by ______.
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. A wire of length L is stretched by a length l when a force F is applied at one end. If the elastic limit is not exceeded, the amount of energy stored in the wire is ______
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B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Which one has the greatest energy gap?
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B.
C.
D.

Question 5 of 15

Question 6 of 15

6. What are the dimensions of stress?
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D.

Question 6 of 15

Question 7 of 15

7. A completely filled band is called ________.
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B.
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D.

Question 7 of 15

Question 8 of 15

8. On the basis of band theory of solids, the semiconductors at room temperature at _______.
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B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The young’s modulus of wire of length L and radius r is Y. If the length is reduced to L/2 and radius to r/2, its Young’s modulus will be
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B.
C.
D.

Question 9 of 15

Question 10 of 15

10. N-type crystals have
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B.
C.
D.

Question 10 of 15

Question 11 of 15

11. In simple cube, one atom or molecule lies at its
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B.
C.
D.

Question 11 of 15

Question 12 of 15

12. A wire, suspended vertically from one end, is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire?
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Any alteration produced in shapes, length or volume when a body is subjected to some external force is called ______
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B.
C.
D.

Question 13 of 15

Question 14 of 15

14. A ferromagnet will become fully magnetized at ________.
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B.
C.
D.

Question 14 of 15

Question 15 of 15

15. How does the Young’s modulus vary with the rise in temperature
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B.
C.
D.

Question 15 of 15

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