ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 17 Physics of Solids MCQ`s Test

Sr.#	Question	Answer
1	In a semi-conductor material, current flows due to	A. positive charge B. negative charge C. both of them D. none of them
2	Experiments revealed that the ratio of the stress to the strain is a constant value for	A. different material B. all materials C. a given material D. all of them
3	Tick the one which is not polymer solid:	A. Zirconia B. Polythene C. Nylon D. Synthetic rubber
4	The doped semi-conductor materials are known as	A. intrinsic semi-conductor B. extrinsic semi-conductor C. either of them D. none of them
5	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
6	When a stress changes the shape, it is called the	A. compressional stress B. tensile stress C. shear stress D. any one of them
7	The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called	A. diamagnetic substances B. ferromagnetic substances C. paramagnetic substances D. all of them
8	The critical temperature of aluminium is	A. 1.18 K B. 4.2 K C. 3.72 K D. 7.2 K
9	A structure of polymeric solid is:	A. An ordered structure B. A disordered structure C. Intermediate between order and disorder D. Any of these
10	Glass is an example of	A. crystalline solid B. amorphous solid C. polymeric solid D. none of them