## Evaluation in education

Concept and Meaning of Test Evaluation and Measurement Test:- in the class –room situation, the word ‘test’ means to judge the knowledge understanding and intelligence of the students. Test can be held in short After the completing the chapter a teacher can take test of his students to know about their grasping power. Thus test can be informal. Measurement:-Measurement is a limited term and has … Continue reading Evaluation in education »

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## degrees of freedom mechanics with examples

Degree of freedom Definition: – The minimum number of independent variables or coordinates required for specifying the position of a dynamical system consisting of one or more particle is called Degree of freedom. For the $N$ number of particles moving freely in $d$ dimensional space degrees of freedom is represented by the following equation. $f=Nd$ Where $N$ is the number of particles and $d$ denote … Continue reading degrees of freedom mechanics with examples »

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## Kepler’s Law of Planetary motion (Central Forces)

Fourier series is an expansion of a periodic function of period $2\pi$ which is representation of a function in a series of sine or cosine such as $f(x)=a_{0}+\sum_{n=1}^{\infty }a_{n}cos(nx)+\sum_{n=1}^{\infty }b_{n}sin(nx)$ where $a_{0}$, $a_{n}$ and $b_{n}$ are constants and are known as Fourier coefficients. In applying Fourier theorem for analysis of a complex periodic function, given function must satisfy the following condition (i) It should be single valued (ii) It should be continuous. Drichlet’s Conditions … Continue reading Fourier series notes »