How to Find Quantum Numbers for an atom

There are four Quantum Numbers for the each electron in the atom. In this post we will see how to find Quantum Numbers for the electrons in an atom or elements . In order to find the Quantum numbers, we need to consider two things. a. Quantum number range and meaning b.How the electrons are distributed in various order in the atom. Brief Introduction about … Continue reading How to Find Quantum Numbers for an atom »

Worksheet on Significant Figures

Significant Figures is an important concept to learn. We should know how to round off the numbers and find the significant figures or digits .Here is the Significant Figures worksheet to practice and master the concept of the significant figures Question 1 Find the significant figures in the below numbers a.  1065 b. .00008 c. 101.01 d. 11.000 e. 213.0005 f. 43.6752 g. 8.0076 h. 7001002 … Continue reading Worksheet on Significant Figures »

Important trigonometry questions for class 11 Maths

Here are some good Important trigonometry questions for class 11 Maths 1.if $tan \theta = \frac {a}{b}$ , show that $\frac {a sin \theta – b cos \theta}{a sin \theta + b cos \theta}= \frac {a^2 – b^2}{a^2 + b^2}$ 2.Prove that $sec^4 x – sec^x = tan^4x + tan^2 x$ 3.Prove that $cosec x ( sec x -1) – cot x(1- cos x) = tan … Continue reading Important trigonometry questions for class 11 Maths »

Trigonometric table from 0 to 360 (cos -sin-cot-tan-sec-cosec)

Trigonometric ratios are important module in Maths. Here in this post, I will provide Trigonometric table from 0 to 360 (cos -sin-cot-tan-sec-cosec) and also the easy and simple way to remember it. Trigonometric table for 0 to 90 is given by And this can be easily remember by below method How to easily remember trigonometric ratios table Now to remember the Trigonometric table for 120 to … Continue reading Trigonometric table from 0 to 360 (cos -sin-cot-tan-sec-cosec) »

trigonometric formulas for Class 10

Trigonometry is quite a important chapter in Class 10 maths and lot of good questions comes in board examination also. Here is the trigonometric formulas for Class 10 in one page In a right angle triangle ABC where B=90° We can define following term for angle A Base :  Side adjacent to angle Perpendicular: Side Opposite of angle Hypotenuse: Side opposite to right angle We can … Continue reading trigonometric formulas for Class 10 »

How to easily remember trigonometric ratios table

Trigonometric ratios table for standard angles is given as Students often find it difficult to remember and use it trigonometric equations, questions and problems There is one easy way to remember these trigonometric ratios table.Lets check it out 1.For sin ratios for 0,30 ,45 ,60 and 90, we can remember them as $sin 0 = \sqrt { \frac {0}{4}} = 0$ $sin 30 = \sqrt … Continue reading How to easily remember trigonometric ratios table »

how to find acceleration with velocity and distance

We know that acceleration is defined as change in velocity per unit time. So given velocities and time , we can calculate acceleration. Now here we will be checking how to find acceleration with velocity and distance Uniform acceleration motion in one dimension In uniformly acceleration motion , acceleration can be find with velocity and distance using the formula $v^2= u^2 + 2as$ Where v is … Continue reading how to find acceleration with velocity and distance »