Question

18. Magnitude of component of vector 2i + 6k along y
axis is
(1) 6
(2) 1
(3) 2
(zero​

Answer 1

Answer:

zero

because vector component of y axis is 'j'

so the equation given will be 2i+0.j+6k

Answer 2

The magnitude of the component of the given vector along the y-axis is equal to Zero. Hence the correct option is (4) Zero.

Given:

$\boldsymbol{The \:given\:vector\:is\:\:2\vec{i}+6\vec{k}}$

To Find:

The magnitude of the component of the given vector along the y-axis.

Solution:

$\boldsymbol{The \:given\:vector\:is\:\:2\vec{i}+6\vec{k}.}$

$\boldsymbol{We\:can\:write\:the \:given\:vector\:as\:\:2\vec{i}+(0)\vec{j}+6\vec{k}.}$

∴ The magnitude of the component of the given vector along the x-axis = 2

∴ The magnitude of the component of the given vector along the y-axis = 0

∴ The magnitude of the component of the given vector along the z-axis = 6

Therefore the magnitude of the component of the given vector along the y-axis would be equal to Zero. Hence the correct option is (4) Zero.

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