Learn Chapter 10 Class 12 Vector Algebra free with solutions of all NCERT Questions, Examples as well as Supplementary Questions from NCERT.
Suppose we have to go 10km from Point A to Point B.
This 10km is the distance travelled.
It is only value - 10, nothing else.
This is a
scalar quantity.
Now, suppose we say,
We go 10 km East from Point A to Point B.
So, we have travelled 10 km East
It has value - 10, and direction - East.
So, this is a
vector quantity
.
In this chapter, we will talk about vectors. The topics include
-
Basics - Difference between
scalars and vectors
, with example
-
Graphical Displacement
- Where we represent Displacement like 40 km, 30° East of North, in the Graph.
-
We also discuss what is a position vector, and
different types of vectors
-
Then we learn what happens when a
scalar is multiplied to a vector
-
We learn what are
Equal
Vectors and
Unit Vectors
, and do some questions on them
-
Finding
Direction Ratios
and Direction
Cosines
-
Then,
adding two vectors
-
Finding
vector joining two points
-
Section formula
in vectors
-
Checking if 3 points make a
right angled triangle
-
Checking
if 2 vectors are collinear
-
Checking
if 3 points
(or vectors) are collinear
-
Then,
Scalar Product
of Vectors and its properties
-
Finding
projection
using scalar product
-
Vector product
of vectors, and its properties
-
Finding
area
using vector product (Area of parallelogram = Vector Product)
All the questions are solved, with step by step explanation. Click on an exercise or a topic to start learning