If a vector 2î+3ĵ+8k̂ is perpendicular to the vector 4î−Âĵ+a k̂, then value of α is
A
-1
B
1/2
C
-1/2
D
1

Question

If a vector 2î+3ĵ+8k̂ is perpendicular to the vector 4î−Âĵ+a k̂, then value of α is

Accepted Answer

1/2

Answer

-1

Answer

-1/2

Answer

1

AIIMS 2013 Physics Dot Product MCQ Question