MCQs of Vectors (Basics Mathematics - 3300001)

Showing 31 to 40 out of 50 Questions

31.

$______$ is a unit vector.

$______$ એકમ સદિશ છે.

32.

If $\bar{a} = (1, 2, 3)$ and $\bar{b} = (4, 4, - 4)$ then $\bar{a} . \bar{b} =______$

જો $\bar{a} = (1, 2, 3)$ અને $\bar{b} = (4, 4, - 4)$ હોય તો $\bar{a} . \bar{b} =______$

33.

If $\bar{x} = i + 4 j + k$ then $|\bar{x}| =______$

જો $\bar{x} = i + 4 j + k$ હોય તો $|\bar{x}| =______$

34.

If $\bar{x} = 2 \bar{y}$ then $\bar{x} \times \bar{y} =______$

જો $\bar{x} = 2 \bar{y}$ હોય તો $\bar{x} \times \bar{y} =______$

35.

If $\bar{x} . \bar{y} = 0$ then $\bar{x}$ and $\bar{y}$ are $______$ vectors.

જો $\bar{x} . \bar{y} = 0$ હોય તો $\bar{x}$ અને $\bar{y}$ $______$ સદિશ થાય.

36.

Direction cosine of y- direction is $______$

37.

If $\bar{x} = 3 i - k - 2 j$ and $\bar{y} = 6 i + 4 k + 7 j$ then $(\bar{x} \hat{} \bar{y}) =______$

જો $\bar{x} = 3 i - k - 2 j$ અને $\bar{y} = 6 i + 4 k + 7 j$ હોય તો $(\bar{x} \hat{} \bar{y}) =______$

38.

If $\bar{a} = 2 i + j$ and $\bar{b} = i - 2 j$ then $2 \bar{a} + 3 \bar{b} =______$

જો $\bar{a} = 2 i + j$ અને $\bar{b} = i - 2 j$ હોય તો $2 \bar{a} + 3 \bar{b} =______$

39.

If $\bar{a}$ is unit vector than $|\bar{a}| =______$

જો $\bar{a}$ એ એકમ સદિશ હોય તો $|\bar{a}| =______$ થાય.

40.

If $(2, - 3, 5) . (R, - 6, - 8) = 0$ then R $=______$

જો $(2, - 3, 5) . (R, - 6, - 8) = 0$ હોય તો R $=______$ થાય.

Showing 31 to 40 out of 50 Questions