Entry Test 2021 Physics Of Solids MCQS Online Preparation Sample Paper Questions with Answer

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Solids, vector quantity, perfect rigid body, Bulk modulus, Physics MCQS.

Explore the world of solids with Nokryan.com! Solids, the strong underpinning of the physical realm, contain a variety of fascinating properties and occurrences. Investigate the idea of vector quantity, where both the size and direction are vital in describing physical attributes such as force, velocity, and acceleration. Move on to the concept of an ideal rigid body, visualize a perfectly solid object that maintains its form and dimensions under external forces, playing a key role in mechanics and engineering. Delve into the notion of bulk modulus, a measure of a solid’s ability to withstand uniform compression, providing insights into its elasticity and mechanical behavior. And for those eager to test their knowledge, With Nokryan.com as your guide.

1. The solids are classified as ?

  • All except Acorrect
  • Metals
  • Crystalline
  • Amorphous
  • Polymeric

2. When relatively simple molecules are chemically combined into massive molecules, the reaction is called ?

  • Fission reaction
  • Any of these
  • Fusion reaction
  • None of these
  • Polymerization reactioncorrect

3. The arrangement or molecules or atoms in a crystalline solid can be studied by using ?

  • X-ray techniquescorrect
  • Both A & B
  • Chemical methods
  • Neutrons
  • Copper atoms

4. The structure of polymeric solid is ?

  • Intermediate between order and disordercorrect
  • An ordered structure
  • Any of these
  • None of these
  • A disordered structure

5. The force which maintains the strict long-ranger order between atoms of a crystalline solid is the ?

  • None of these
  • Adhesive force
  • Coulomb force
  • Nuclear force
  • Cohesive forcecorrect

6. The whole structure obtained by the repetition of unit cell is called ?

  • Crystal latticecorrect
  • Amorphous solid
  • Polymeric solid
  • Polystrene
  • None of these

7. In a cubic crystal. all the sides meet at ?

  • 10º
  • 90ºcorrect
  • 30º
  • 60º
  • 109º

8. The temperature at which the vibrations become so great that structure of the crystal breaks up, is called ?

  • Critical temperature
  • Both A and C
  • Melting pointcorrect
  • temperature of vaporization
  • Both A and B

9. Zirconia is classified as ?

  • Either A or B
  • Metal
  • Ceramic solidcorrect
  • Ionic Compound

10. Each atom in a metal crystal ?

  • Remains fixed
  • None of these
  • Vibrates abut a fixed pointcorrect
  • Rotates about center of the crystal
  • Moves randomly

11. In crystalline solids, atoms are held about their equilibrium positions depending upon the strength of ?

  • Inter atomic cohesive forcecorrect
  • Nuclear force
  • Electromagnetic force
  • Adhesive force
  • None of these

12. Examples of polymeric substances are ?

  • Both A and Bcorrect
  • Zirconia
  • Both A and C
  • Synthetic rubbers
  • Plastic

13. An ordinary glass gradually softens into a ‘Paste-like’ state before it become a very viscous liquid, it happens almost at ?

  • 300º C
  • None of these
  • 500º C
  • 100º C
  • 800º Ccorrect

14. Each atom in  a metal crystal vibrates about a fixed point with an amplitude that ?

  • Both B and C
  • Decrease with rise in temperature
  • None of these
  • Increase with rise in temperaturecorrect
  • Is not affected by rise in temperature

15. Crystalline solids are in the form of ?

  • Ionic Compounds
  • Ceramics
  • All of thesecorrect
  • Both A and B
  • Metals

16. A unit cell is the smallest basic structure which is ?

  • Three dimensionalcorrect
  • None of these
  • Four dimensional
  • One dimensional
  • Two dimensional

17. The word amorphous means ?

  • Both B and C
  • Without any structurecorrect
  • With Definite Structure
  • Regular arrangement molecules
  • None of these

18. The pattern of a crystalline solid is ?

  • None of these
  • Either A or B
  • Three dimensionalcorrect
  • One dimensional
  • Two dimensional

19. The pattern of NaCI particles have a shape which is ?

  • Face centred
  • Simple cubic
  • Cubic
  • Body centred cubic
  • Both A and Ccorrect

20. Tick the one which is not a crystalline solid ?

  • Copper
  • An ionic compound
  • Ceramic solid
  • Zirconia
  • Glasscorrect

21. Amorphous solids ?

  • Both B and Ccorrect
  • Have no definite melting point
  • Are called glassy solids
  • Have definite melting point
  • Both A and C

22. The transition from solid liquid is actually from ?

  • Disorder to order
  • Order to order
  • Order to disordercorrect
  • Disorder to disorder
  • None of these

23. The smallest three dimensional basic structure is called ?

  • None of these
  • Nuclear force
  • Adhesive force
  • Electromagnetic force
  • Inter atomic cohesive forcecorrect

24. Examples of crystalline solids are ?

  • Both A and B
  • Zirconia
  • All of thesecorrect
  • NaCl
  • Copper

25. The transition from solid state to liquid state is ?

  • Continuous
  • Both A and Dcorrect
  • Discontinuous
  • Abrupt
  • Slow

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