What is inequalities
In mathematics, an inequality is a relation that holds between two values when they are different
Solving linear inequalities is very similar to solving linear equations, except for one small but important detail: you flip the inequality sign whenever you multiply or divide the inequality by a negative
Symbols used in inequalities
The symbol < means less than. The symbol > means greater than.
The symbol < with a bar underneath means less than or equal to. Usually this is written as ?The symbol > with a bar underneath means greater than or equal to. Usually this is written as ?
The symbol ? means the quatities on left and right side are not equal
1) First Important steps towards the CBSE Board 2104 would be to prepare a time table of Study and revision and try to stick to it. Devote around 6-8 hours for studies on the daily basis.
2) Time management is another skill which will be very useful during the examination. It means you should be knowing how much time need to be devoted to each question. Writing just enough for the question. Attempting the larger marks questions. You should be taking simulating exam situation in your home and give as many practice papers as possible
3) Do not play with your Health,Eating habits.Stick to the routine and follow normal health routine. Breathing exercise could be very helpful during this time
Some Points about Conservative forces and Non conservative forces
1) Potential energy are defined for Conservative forces
2) An object that starts at a given point and return to the same point,then
net workdone by the conservative force is zero while in case of non conservative force ,it will not be zero
Net Heat flow at a junction is Zero
Internal Energy does not depend on the path
Internal Energy in a cyclic Process is zero
Workdone is given by the area enclosed by the process on the PV diagram
Always make sure you Heat(Q) ,Internal Energy(U) and Work(W) with correct sign in equation
This mathematics sheet would be helpful for quick revision of most of maths formulas needed before class 11 and 12 physics examination. It covers quick and much needed formulas on differentiation , integration, trigonometry, AP, GP etc.
This tour is given to give the feel of the whole chapters plus the type of questions and ways to tackle them.This is quite beneficial for anybody studying One dimensional Motion.
One dimensional Motion is the study of the motion along an straight line.Complete Study material has been provided at the below link
We often comes across the problems in mechanics where we need to apply the law of conservation of energy where gravitational potential energy or gravity is involved . For solving such problems you can consider the following problem solving strategy,
1) Read the instruction of the paper and see if there is any negative marking. This will help you in making educated guess.There are two types of Multiple choice questions. a) Only one answer b) can be more than one. Always check the instruction before attempting the question
2) Take a brief tour of the paper,so that you have a idea of the whole paper. Start your paper with Easy question.
3) Read the question before you look at the answer. Come up with the answer in your head before looking at the possible answers, this way the choices given on the test won’t throw you off or trick you.
4) Cross out any answers that you know are wrong.
5) Always Read all