APPSC DL Physics Previous Papers

Would you please get the APPSC Degree Lecturer post, Physics exam paper so that I can solve it easily?

[Rajkumar Agarwal]

No problem I will get the APPSC Degree Lecturer post, Physics exam paper so that you can prepare hard for exam.

Here is the exam paper

The number of atoms per unit cell for a face entered cubic (FCC) lattice of copper crystal is Nearly (given a=3.60 A o .ext. wt. of copper = 63.6, density of copper = 8.86)
a) 3
b) 4
c) 5
d) 2

Where an electron is considered to belong to the crystal as a whole than to the particular atom, which of the following approaches are applicable.
a) Heitler-London theory
b) Bloch approach
c) Bragg’s law
d) none

Example for semiconductors
a) Iron
b) copper
c) germanium
d) lead

The impurities that capture electrons from the valance band in a semiconductor are called
a)donors
b)Acceptors
c)intrinsic
d)Extrinsic



APPSC DL Physics paper