vectors

vectors

11th Grade

10 Qs

quiz-placeholder

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vectors

vectors

Assessment

Quiz

Physics

11th Grade

Easy

Created by

NAMRATA A

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The value of (i-j).(2i-j+k) is:

-3

+3

0

2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the dot product of two vectors is 0 then the angle between them (in degrees) will be:

0

180

60

90

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The magnitude of vector i-j-k is

-1

+1

 3\sqrt{3}  

none of these

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The angle betweeen the vectors (i+j) and (-i+j) (in degrees) is:

0

45

90

180

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The value of x, so that xi+0.4j+0.8k is a unit vector is:

1

2\sqrt{2}

-0.2

0.2\sqrt{0.2}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A vector when added to 2i-j+k and -i-j+k gives null vector. The vector is:

i-2j+2k

-i+2j-2k

2i-2j+2k

2i-j+2k

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the incorrect option:

A\overrightarrow{A} . B\overrightarrow{B} = B\overrightarrow{B} . A\overrightarrow{A}

i.j=0

k.k=0

j.j=1

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