engineering recuitment BEL Probationary Engineers Mock Test 2025 Engineering Materials Science Structure and Properties of Engineering Materials Crystal Structures
BCC और FCC के लिए क्रमशः परमाणु संकुलनांक क्या है?
1
0.52, 0.78
2
0.74, 0.68
3
0.52, 0.74
4
0.68, 0.74