# Free courses for CBSE & ISCE Board | Class 9, 10, 11, 12

Last Updated: 11/2019

##### Real Numbers

Mathematics

- 0.5 Hours
- Intermediate Level

A real number is a number that can be positive or negative and have decimal places after the point. Positive or negative, large or small, whole numbers or decimal numbers are on the whole Real Numbers. They are called "Real Numbers" since they are not Imaginary Numbers. The collection of all rational numbers and irrational numbers together is called real numbers, which is denoted by R. Real num...

Last Updated: 11/2019

##### Reflection of Light

Physics

- 1.8 Hour
- Intermediate Level

Reflection of Light is the way process sending back the light rays which falls on the surface of an object. Reflection is when light bounces off an object. The way toward sending back the light rays in the wake of falling on the sparkling surface of an object is called reflection of light. The image formed because of reflection of an object on a plane mirror is at better places.

Last Updated: 11/2019

##### Polynomials

Maths

- 1.1 Hour
- Beginner Level

Polynomial originates from poly-(many) and nomial-(term), so it says "many terms". An algebraic expression having only one, two and three terms are respectively called monomial, binomial and trinomial. The highest power of the variable in a polynomial is called the degree of the polynomial. A polynomial whose degree is one is called a linear polynomial. A polynomial whose degree is two is calle...

Last Updated: 11/2019

##### Periodic Table

Chemistry

- 1.6 Hour
- Intermediate Level

The periodic table is a arrangement of the chemical elements requested by atomic number with the goal that periodic properties of the elements are made clear. The periodic table is sorted out like a major matrix. Every element is put in a particular area in view of its atomic structure. Likewise with any framework, the periodic table has rows and columns. Each row and column has specific c...

Last Updated: 11/2019

##### Diversity Of Living Organisms -Bio Diversity In The Living

Biology

- 0.6 Hours
- Intermediate Level

Diversity Of Living Organisms base on Biodiversity term is utilized to characterize the diversity of life forms. The chemical reactions involved in metabolism are known as metabolic reactions or biochemical reactions. Biodiversity is a variation of all life forms. It is a measure of the health of biological systems. More diversity means that a system is healthy. Reproduction can be defined as a...