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CBSE has relaxed the passing criteria for Class 10 Board

CBSE has relaxed the passing criteria for Class 10 Board for the year 2018. As per the notice, students need to obtains 33% overall in  both internal assessment and board examination to pass the subject.  This is one time measure for this year students only as they were coming from different assessment background while they […]

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Useful fictitious force examples

A non inertial Frame of Refrence is the frame of refrence which is having acceleration a. Example Free Falling elevator
Newtons law are valid in inertial frame of refrence only. We cannot apply them as it is in non inertial frame of refrence as it left out the acceleration of the object because of the frame of refrence.
Let me provide simple example to illustrate this.


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Nuclear Force – Definition | properties of Nuclear Force

We already know about gravitational and electrostatic forces now a question arises that does these forces still hold when we talk about nuclear dimensions as gravitational force between two protons is far too less to hold them and electrostatic force between two protons always a force repulsive in nature . So what hold protons together to form a nucleus.


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Center of mass and torque test for class 11

This article is about Center of mass and torque test for class 11 physics. These are very short answer type and derivation type questions for your exams. Practice them for good marks in your exams. For notes on these topics please click the links given below Center of mass Torque and rotational mechanics Center of mass


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System of particles practice problems with solutions for class 11

This article contains System of particles practice problems with solutions for class 11. In this article I have given numerical problems to solve. You can print this article and practice these problems. You read notes on this chapter before practicing these questions. For them please visit this link Center of mass : System of particles

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