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3-1.Vectors
easy
જો $\vec{P}+\vec{Q}=\overrightarrow{0}$, જો હોય તો નીચેના માંથી ક્યું સાયું છે ?
A
$\vec{P}=\overrightarrow{0}$
B
$\vec{P}=-\vec{Q}$
C
$\vec{Q}= 0$
D
$\vec{P}=\vec{Q}$
Solution
(b)
Given,
$\overrightarrow{ P }+\overrightarrow{ Q }=0$
$\Rightarrow \overrightarrow{ P }=-\overrightarrow{ Q }$
as given quantities are vectors, the sum of vectors opposite to each other has different signs.
Standard 11
Physics
