Q68
The yield strenght of a polycrystalline metal increases from 100 MPa to 145 MPa on decreasing the grain size from 64 μm to 25 μm. The yield strenght of this metal (in MPa) having a grain size of 36 μm is
A.
110
B.
125
AnswerC.
140
D.
165
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board