1
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
for the scalar field $$u = {{{x^2}} \over 2} + {{{y^2}} \over 3},\,\,$$ the magnitude of the gradient at the point $$(1,3)$$ is
A
$$\sqrt {{{13} \over 9}} $$
B
$$\sqrt {{9 \over 2}} $$
C
$$\sqrt 5 $$
D
$${{9 \over 2}}$$
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