Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 13

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If $| \vec{A} + \vec{B} | = | \vec{A} - \vec{B} |$ , then angle between $\vec{A}$ and $\vec{B}$ is

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Important Questions on Scalars and Vectors

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11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 14

If vector

\vec{a} = 2 \vec{i} + 4 \hat{j} - 2 \hat{k}

,

\vec{b} = 3 \hat{i} - 2 \hat{j} + x \hat{k}

are perpendicular to each other then the value of

x

should be

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 15

A force of

120 N

and a force of

20 N

acting simultaneously at a point may produce a resultant force of

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 16

If

{\hat{a}}_{1}

and

{\hat{a}}_{2}

are non-collinear unit vectors and if

|{\hat{a}}_{1} + {\hat{a}}_{2}| = \sqrt{3}

, then the value of

(2 {\hat{a}}_{1} - 5 {\hat{a}}_{2}) \cdot (3 {\hat{a}}_{1} + {\hat{a}}_{2})

is.

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 18

The minimum number of unequal forces whose vector sum can be zero is

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 19

The component of

9 \hat{i} + 17 \hat{k}

along

z

-axis is:

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 20

The magnitude of vector product of two vectors is

\sqrt{3}

times their scalar product. The angle between the vectors is

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 21

The flight of a bird can be an example of

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Bureau's Higher Secondary Physics Class 11>Chapter 2 - Scalars and Vectors>MODEL QUESTIONS>Q 22

If

|{\vec{F}}_{1} + {\vec{F}}_{2}| = |{\vec{F}}_{1} - {\vec{F}}_{2}|

, then