Vidyalelo
Engineering Physics · Q16

Solid State Physics

Engineering and GATE · Engineering Physics · question 16

Q16

In a cubic system with cell edge a, two phonons with wave vectors q _1 and q _2 collide and produce a third phonon with a wave. vector q _3 such that q _1 + q _2 = q _3 + R where, R is a lattice vector. Such a collision process will lead to (a)

In a cubic system with cell edge a, two phonons with wave vectors and collide and produce a third phonon with a wave. vector such that    where, is a lattice vector. Such a collision process will lead to (a)
A.
finite thermal resistance
Answer
B.
zero thermal resistance
C.
an infinite thermal resistance
D.
a finite thermal resistance for certain only

Answer: Option A

Solution

Answer: Option A
No explanation is given for this question Let's Discuss on Board