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# NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1

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# NCERT Solutions for Class 12 Maths Vector Algebra

Hi Students, Welcome to Amans Maths Blogs (AMB). In this post, you will get the NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1.

As we know that all the schools affiliated from CBSE follow the NCERT books for all subjects. You can check the CBSE NCERT Syllabus. Thus, NCERT Solutions helps the students to solve the exercise questions as given in NCERT Books.

NCERT Solutions for class 12 is highly recommended by the experienced teacher for students who are going to appear in CBSE Class 12 and JEE Mains and Advanced and NEET level exams. Here You will get NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1 of all questions given in NCERT textbooks of class 12 in details with step by step process.

The PDF books of NCERT Solutions for Class 12 are the first step towards the learning and understanding the each sections of Maths, Physics, Chemistry, Biology as it all help in engineering medical entrance exams. To solve it, you just need to click on download links of NCERT solutions for class 12.

CBSE Class 12th is an important school class in your life as you take some serious decision about your career. And out of all subjects, Maths is an important and core subjects. So CBSE NCERT Solutions for Class 12th Maths is major role in your exam preparation as it has detailed chapter wise solutions for all exercise. This NCERT Solutions can be downloaded in PDF file. The downloading link is given at last.

NCERT Solutions for Class 12 Maths are not only the solutions of Maths exercise but it builds your foundation of other important subjects. Getting knowledge of depth concept of CBSE Class 12th Maths like Algebra, Calculus, Trigonometry, Coordinate Geometry help you to understand the concept of Physics and Physical Chemistry.

## NCERT Solutions for Class 12 Maths Vector Algebra

NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1: Ques No 1.

Represent graphically a displacement of 40 km, 30° east of north.

NCERT Solutions:

On a scale of 1 cm = 10 km, we draw a line segment of length 4 cm on the right of ON, making an angle of 30 degree with ON.

Thus, the vector represents displacement of 40 km, 30 degree east of north.

NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1: Ques No 2.

Classify the following measures as scalars and vectors.

(i) 10 kg

(ii) 2 meters north-west

(iii) 40°

(iv) 40 watt

(v) 10–19 coulomb

(vi) 20 m/s2

NCERT Solutions:

(i) 10 kg has magnitude only. So, this is a Scalar Quantity

(ii) 2 meters north-west has both magnitude and direction. So, this is a Vector Quantity.

(iii) 40° has magnitude only. So, this is a Scalar Quantity.

(iv) 40 watt has magnitude only. So, this is a Scalar Quantity.

(v) 10–19 coulomb has magnitude only. So, this is a Scalar Quantity.

(vi) 20 m/s2 is an acceleration which has both magnitude and direction. So, this is a Vector Quantity.

NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1: Ques No 3.

Classify the following as scalar and vector quantities.

(i) time period

(ii) distance

(iii) force

(iv) velocity

(v) work done

NCERT Solutions:

(i) time period has magnitude only, so this is a Scalar Quantity.

(ii) distance has magnitude only, so this is a Scalar Quantity.

(iii) force has magnitude and direction both, so this is a Vector Quantity.

(iv) velocity has magnitude and direction both, so this is a Vector Quantity.

(v) work done has magnitude only, so this is a Scalar Quantity.

NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1: Ques No 4.

In Fig 10.6 (a square), identify the following vectors.

(i) Coinitial (ii) Equal (iii) Collinear but not equal

NCERT Solutions:

(i) The vectors and start from same point, so and are co-initial vectors.

(ii) The vectors and have equal magnitude and same direction, so and are equal vectors.

(ii) The vectors and have equal magnitude but opposite direction, so and are collinear but not equal vectors.

NCERT Solutions for Class 12 Maths Vector Algebra Exercise 10.1: Ques No 5.

Answer the following as true or false.

(i) and − 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

NCERT Solutions:

(i) True.

(ii) False

(iii) False.

(iv) True

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