Ever wondered about the reason for the light from the edge of clouds or from windows in your darkroom or the beautiful sunlight coming through trees or the blue color of smoke from your motorcycle engine or the blue color of the sky? These mesmerizing phenomena are known as the Tyndall effect. To understand the […]
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This page contains Important Questions for Class 10 Science Chapter 1 – Chemical Reactions and Equations. In this page, you will find a collection of previous years board questions for this chapter along with their solutions. I am also giving the Important links below which can help you in further study of this chapter Chemical
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Class 11 Maths Formula book This is a Mathematics formula and revision book for class 11 (CBSE). Having all the formula in one place is always helpful for the students, Keeping that in mind,We have prepared a Maths formulas pdf for CBSE Class 11 students. This math formula book contains the maths formulas that are
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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
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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
Thermodynamics Problem solving tips Read More »
Answer the question in this post to test your concepts for competitive exams.
Test your physics (conceptual questions for JEE) Read More »
Right hand rule for cross product:-
Consider that c is the cross product of two vectors a and b i.e.,
c=a x b
If direction of vector a is along the x axis and that of b along z axis then direction of vector c could be find using right hand rule for cross products.
Problem solving tricks-Right hand rules (Magnetic fields due to currents) Read More »
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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