Class 11 Mathematics · Chapter 14 · Test 1
Vector Basics
41 MCQs Covers scalars and vectors, magnitude, unit vectors, parallel vectors, position vectors, distance and direction cosines (Ex 14.1).
41 questions · 40 min · 41 marks
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Sample questions
The first 5 of 41. Try each one, then tap to see the answer.
Question 1
Which of the following is a scalar quantity?
- AVelocity
- BSpeed
- CForce
- DDisplacement
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Answer: B
Speed has magnitude only; velocity, force and displacement also need direction.
Question 2
Which of the following is a vector quantity?
- AMass
- BTemperature
- CWork
- DMomentum
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Answer: D
Momentum has both magnitude and direction.
Question 3
A vector is represented geometrically by
- Aa directed line segment
- Ba point
- Ca closed curve
- Da plane region
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Answer: A
A vector AB is a directed line segment with initial point A and terminal point B.
Question 4
The magnitude of the vector u = [x, y] in the plane is
- Ax + y
- Bx² + y²
- C√(x² + y²)
- D√(x² − y²)
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Answer: C
|u| is the distance of P(x, y) from the origin.
Question 5
A unit vector in the direction of v is
- Av × |v|
- Bv / |v|
- C|v| / v
- Dv + |v|
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Answer: B
Dividing a vector by its magnitude gives a vector of magnitude 1.
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