What are the types of substances in Class 9?
A homogeneous material that contains particles of only one kind and has a definite set of properties is called a pure substance.
e.g. Iron, silver, oxygen, sulphur, Carbon dioxide etc., are pure substances because each of them has only one kind of particles.
Get the detailed notes of class9 chapter "Is matter around us pure" from the below link
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CBSE Revised Syllabus for Class 10 Mathematics 2022-2023
Get the Revised syllabus for Class 10 Mathematics which is recently updated by our educators. In order to do well in Class 10 Mathematics students need in-depth practice of the concepts found in the CBSE Class 10 Mathematics Syllabus. So, as you begin your preparation you should always keep the 10th Class Mathematics Syllabus CBSE at hand.
CBSE Syllabus for Class 9 Social Science | Physics Wallah
The Social Sciences Class 9 Syllabus study helps students to understand nature and develops a broader perspective as well as a more realistic, rational, and humane perspective. In this section, attention is given to specific themes in which the Social Science subject has developed.
Chemistry as a subject is equipped with a lot of concepts and learning resources. While preparing for chemistry you will encounter lots of chemistry doubts which needed to be properly addressed. Chemistry is the subject of formulas, reactions, and energy. A different approach is required to have a good understanding of chemistry.
Know the detailed information about the topic, in the below link
Are you looking for #Maths#formulas for all classes? if yes then you are on the right page academic team of Physics Wallah and its proficient #teachers uploaded the Maths formulas pdf for #classes 7 to 12. We have prepared separate sheets for each class and for each class we have uploaded one or two pages of maths formulas in each chapter
Time travel is possible, according to mathematical models and scientific theories. However, the current status of science and technology does not allow us to build a device that can travel back in time. It is believed that in the distant future, time travel might be possible through advances in technology.
Physicists are researching to find answers to a few unknown questions. One of the questions that they are researching is related to the possibility of time travel. They want to find out whether time travel is possible. If somehow possible, a time machine can be created. This is the reason they are researching and working on it. The search for the time machine is on!
