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. 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 1 of 15

Question 2 of 15

2. A vacant of partially filled band is called ______.
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. The curie temperature is that at which ______.
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. Holes can exist in ______.
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. 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 ______
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. N-type crystals have
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. The atomic number and mass number of a nucleus is Z and A. There new value after emission of two alpha and two beta radiation is
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. 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
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The resistivity of semiconductor is of the order of
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The area method to find energy stored in deformed material is valid for
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. The electrons in conduction band are free to _______.
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. A completely filled band is called ________.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. 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 13 of 15

Question 14 of 15

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

Question 14 of 15

Question 15 of 15

15. Which of the following is not true for a  crystalline substance?
A.
B.
C.
D.

Question 15 of 15


 

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