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Articles related to class 9, 10, 11, 12 and B.Sc.
This article contains Rotational motion practice problems for class 11. In this article I have given definition and derivation based problems, very short answer type questions , short answer type questions. You can print this article and practice these problems.You read notes on this chapter before practicing these questions. For them please visit this linkCenter […]
Rotational motion practice problems Read More »
Things to remember
1) Law of conservation of Momentum. The total momentum for the isolated remains constant
2) Elastic collision: In this collison, Momentum and Kinetic energy of the system remains conserved
3) Inelastic collision: In this collision ,Momentum is conserved only
How to effectively solve the Momentum and Collisions problems Read More »
This page contains electric charge and field important questions along with their answers. This chapter comes under unit Electrostatics. These are the basic set of questions you must do in order to get good understanding of the subject and get good marks. Physics class 12 chapter 1 important questions Electric Charge One Marks Questions Question
Electric charge and electric field questions and answers Read More »
What is Equilibrium
A rigid body is supposed to be in equilibrium if there is no change in translational motion and no change in rotational motion
The general conditions for equilibrium are as follows
(i) The total force must be zero
(ii) The total torque about any axis must be zero.
In many cases it is convenient to consider torques about axes through the centre of gravity.
Types of equilibrium
We can divide the equilibrium into two categories With respect to the state of a body
1. Static equilibrium.
2. Dynamic equilibrium.
Stable unstable and neutral equilibrium Questions for JEE Examination Read More »
A) Normal Force: When we put a book on a table ,the molecules of the book exert downward forces on the molecules of the table.The molecules composing the upper layer of the tabletop move downward until the repulsion of the molecules below balances the forces applied by the book.
Different type of Forces and their origin Read More »
Thermodynamics is a scoring chapter in JEE physics. Here are some Some helpful Tips for Thermodynamics to solve the problem correctly and quickly Tip 1. Always make sure you Heat(Q) ,Internal Energy(U) & Work(W) with correct sign in equation$\Delta U=Q-W$ W is positive when work done by the system(Increase in Volume)W is negative when work done
Some helpful Tips for Thermodynamics Read More »
Introduction to physics project for class 12 Physics investigatory projects for class 12 carry 3 Marks in the Final Examination. Let us take a took at some important concept What is Science: Our knowledge of the natural world and the process through which that knowledge is built The process of science involves many layers of complexity,
Physics project for class 12 Read More »
Scope of the Problem:
Generally the problem asks about forces or accelerations
How to attack at the Problem
1) Draw one free body diagram for each object in problem
Read the following two post to get the feel about free body diagram
Different Type of Force and There Origin
How To draw Free Body diagram
Read the below Video for Free body diagram also
How to Solve Newton’s Second Law Problems Read More »
