NCERT Solutions For Class 12 Maths Chapter 10 Vector Algebra Ex 10.1
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Textbook | NCERT |
Board | CBSE |
Category | NCERT Solutions |
Class | Class 12 |
Subject | Maths |
Chapter | Chapter 10 |
Exercise | Class 12 Maths Chapter 10 Vector Algebra Exercise 10.1 |
Number of Questions Solved | 5 |

NCERT Solutions for Class 12 Maths Chapter 10 Vector Algebra Ex 10.1
NCERT TEXTBOOK EXERCISES
Ex 10.1 Class 12 Maths Question 1.
Represent graphically a displacement of 40km, 30° east of north.
Solution:
A line segment of 2 cm is drawn on the right of OY making an angle of 30° with it. OP = 40 km,
scale 1cm = 20 km. Vector $\overrightarrow { OP }$ represents displacement of 40 km 30° east of north.

Ex 10.1 Class 12 Maths Question 2.
Classify the following measures as scalars and vectors.
(i) 10 kg
(ii) 2 metres north- west
(iii) 40°
(iv) 40 watt
(v) 10-19 coulomb
(vi) 20 m/sec².
Solution:
(i) Mass-scalar
(ii) Directed distance-vector
(iii) Temperature-scalar
(iv) Rate of electricity-scalar
(v) Electric charge-vector
(vi) Acceleration-vector
Ex 10.1 Class 12 Maths Question 3.
Classify the following as scalar and vector quantities
(i) time period
(ii) distance
(iii) force
(iv) velocity
(v)work.
Solution:
Scalar Quantity: (i) time period (ii) distance (v) work.
Vector Quantity: (iii) force (iv) velocity
Ex 10.1 Class 12 Maths Question 4.
In a square, identify the following vectors
(i) Co-initial
(ii) Equal
(iii) collinear but not equal
Solution:
(i) Co initial vectors are $\overrightarrow { a } ,\overrightarrow { d }$
(ii) Equal Vectors are $\overrightarrow { b } ,\overrightarrow { d }$
(iii) Collinear but not equal vectors are $\overrightarrow { a } ,\overrightarrow { c }$

Ex 10.1 Class 12 Maths Question 5. Answer the following as true or false:
(i) $\overrightarrow { a } ,\overrightarrow { -a }$ are collinear.
(ii) Two collinear vectors are always equal in magnitude.
(iii) Two vectors having same magnitude are collinear.
(iv) Two collinear vectors having the same magnitude are equal.
Solution:
(i) True
(ii) False
(iii) False
(iv) False.
NCERT Solutions for Class 12 Maths Chapter 10 Vector Algebra Exercise 10.1 PDF
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