ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 17 Physics of Solid MCQ`s Test

Sr.#	Question	Answer
1	The valence band of an atom in a solid	A. is always empty B. may or may not be empty C. can never be empty D. none of them
2	Arsenic, antimony and phosphorus are the elements from	A. third group B. fourth group C. fifth group D. none of them
3	A unit cell is smallest basic structure which is:	A. One dimensional B. Two dimensional C. Three dimensional D. Four dimensional
4	Electrons of an isolated atom are bound to the nucleus, and	A. can only have distinct energy level B. can only have same energy level C. may or may not have distinct energy levels D. none of these
5	The critical temperature of aluminium is	A. 1.18 K B. 4.2 K C. 3.72 K D. 7.2 K
6	Glass and high carbon steel are the examples of	A. brittle substances B. ductile substances C. plastic substances D. elastic substances
7	The transition from solid state to liquid state is:	A. Abrupt B. Slow C. Continous D. Discontinous
8	Each atom in metal crystal:	A. Remains fixed B. Vibrates about a fixed point C. Moves randomly D. Rotates about center of a crystal
9	The band above the valence band is called	A. high energy band B. conduction band C. empty band D. none of them
10	If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be	A. permanent B. temporary C. either of them D. none of them