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प्रश्न
Consider two vectors `vec("F"_1) = 2 hat"i" + 5 hat"k"` and `vec("F"_2) = 3 hat"j" + 4 hat"k"`. The magnitude of the scalar product of these vectors is:
पर्याय
26
28
30
20
MCQ
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उत्तर
20
Explanation:
For the scalar product, F1 . F2 = `(2 hat"i" + 5 hat"k") (3 hat"j" + 4 hat"k")`
F1 . F2 = 20
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Scalar (Dot) and Vector (Cross) Product of Vectors
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