NDA Mathematics
Vector Algebra — Quiz
20 Questions · No Negative Marking
Question 1
The magnitude of vector a = 3î + 4ĵ is: (NDA PYQ)
A3
B4
C5
D7
Question 2
The unit vector along î + ĵ is: (NDA PYQ)
A(î + ĵ)
B(î + ĵ)/√2
C(î + ĵ)/2
D(î − ĵ)/√2
Question 3
The dot product of a = î + 2ĵ − k̂ and b = 2î − ĵ + 3k̂ is: (NDA PYQ)
A−3
B−1
C0
D3
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