Physics Class 11 Vectors Questions. We covered all the Physics Class 11 Vectors Questions in this post for free so that you can practice well for the exam.
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Physics Class 11 Vectors Objective Questions for Students
The work done in moving an object along a vector r = 3i + 2j- 5k, if the applied force is F = 2i-j-k is
1. 2
2. 5
3. 9
4.11
Option 3 – 9
An equation for the plane perpendicular to the vector A = 2i + 3j + 6k and passing through the terminal point of the vector B = i + 5j + 3k is
1. 2x + 3y + 6z = 35
2. 3y + 2z = 2
3. x-2y-5z = 6
4. None
Option 1 – 2x + 3y + 6z = 35
A particle moves from position r₁ = 3i + 2j 6k to position r₂ = 14i + 13j + 9k under the action of force F = (4i+j+ 3k). The work done by the force is
1. 50 units
2. 75 units
3. 100 units
4. 200 units
Option 3 – 100 units
At what value of ‘a’ so that A = 2i + aj + k and B = 4i – 2j – 2k are perpendicular
1. 1
2. 2
3. 3
4. 4
Option 3 – 3
Two forces acting in opposite directions have a resultant of 10 N. If they act at right angles to each other, the result is 50 N. Then the magnitudes of forces are
1. 20 N, 30 N
2. 40 N, 30 N
3. 25 N, 40 N
4. 50 N, 60 N
Option 2 – 40 N, 30 N
Two vectors A and B are such that IA-BI = ICI and A – B = C. The angle between them is
1. 0°
2. 30°
3. 45°
4. None
Option 1 – 0°
Two vectors A and B are such that IAI = IA-BI. The angle between them is IBI=
1. 0°
2. 60°
3. 90⁰
4. 120°
Option 2 – 60°
The resultant of two forces of magnitudes 5 N and 10 N cannot be
1. 4 N
2. 6 N
3. 9 N
4. 13 N
Option 1 – 4 N
Two non-zero vectors A and B are such that IA+ BI= IA-BI. The angle between them is
1. 0°
2. 90°
3. 120°
4. None
Option 2 – 90°
If F = 4i + 10j and F=5i – 4j then rxF=
1. – 66k
2. 66k
3. 77k
4. None
Option 2 – 66k
We covered all the physics class 11 vectors questions above in this post for free so that you can practice well for the exam.
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