If a unit vector is represented by $0.5\hat i + 0.8\hat j + c\hat k$, then the value of ‘$c$’ is
If a unit vector is represented by $0.5\hat i + 0.8\hat j + c\hat k$, then the value of ‘$c$’ is
- [AIPMT 1999]
- A
$1$
- B
$\sqrt {0.11} $
- C
$\sqrt {0.01} $
- D
$\sqrt {0.39} $
Similar Questions
If $\vec P = \vec Q$ then which of the following is NOT correct
If $\vec P = \vec Q$ then which of the following is NOT correct
Identify the vector quantity among the following
Identify the vector quantity among the following
- [AIPMT 1997]
A particle is moving with speed $6\,m/s$ along the direction of $\vec A = 2\hat i + 2\hat j - \hat k,$ then its velocity is
A particle is moving with speed $6\,m/s$ along the direction of $\vec A = 2\hat i + 2\hat j - \hat k,$ then its velocity is
Position of a particle in a rectangular-co-ordinate system is $(3, 2, 5)$. Then its position vector will be
Position of a particle in a rectangular-co-ordinate system is $(3, 2, 5)$. Then its position vector will be
The unit vector along $\hat i + \hat j$ is
The unit vector along $\hat i + \hat j$ is