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	Synthetic materials fall into the category of	A. crystalline solids B. amorphous C. polymeric solids D. all of them
2	The conduction band in a solid	A. may be empty B. cannot be empty C. should be filed D. all of them
3	On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost	A. 600°C B. 7600°C C. 800°C D. 900°C
4	There are some whose resistivity becomes zero below a certain temperature, called	A. absolute zero B. 0°C C. critical temperature D. lower fixed point
5	The curie temperature of iron is about	A. 250°C B. 500°C C. 750°C D. 1000°C
6	A structure of polymeric solid is:	A. An ordered structure B. A disordered structure C. Intermediate between order and disorder D. Any of these
7	The band above the valence band is called	A. high energy band B. conduction band C. empty band D. none of them
8	The pattern of NaCl particles have a shape which is :	A. Cubic B. Body centred cubic C. Simple cubic D. face centred
9	In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of:	A. Adhesive force B. Nuclear forces C. Inter atomic cohesive force D. Electromagnetic force
10	The doped semi-conductor materials are known as	A. intrinsic semi-conductor B. extrinsic semi-conductor C. either of them D. none of them