Stoke’s Law When a body moves through a fluid it experiences a resistive force because the presence of the fluid. Every fluid has a property called viscosity, the resistance of a fluid to anybody moving through it. Thicker, more viscous materials resist more the movement of bodies through them than thinner, less viscous materials. The Read more about Stoke’s Law[…]
Angle of Elevation If ‘O’ be the observer’s eye and OX be the horizontal line through O. if object P is at a higher level than eye, then angle POX is called the angle of elevation. Example 1: The top of a hill observed from the top and bottom of a building h is at Read more about Angle of Elevation[…]
Equation of Simple Harmonic Motion Simple harmonic motion as a motion in which the restoring force is directly proportional to displacement of the body from the mean position. The differential equation of simple harmonic motion is given by: . The necessary and sufficient condition for a motion to be simple harmonic is that the net Read more about Equation of Simple Harmonic Motion[…]
Empirical Relationship Between Mean, Median and Mode A distribution in which the value of mean, median and mode coincide, is know symmetrical and if these values are not equal, then the distribution is said asymmetrical or skewed. In a moderately skewed distribution, there is a relation amongst mean, median and mode which is as follows. Read more about Empirical Relationship Between Mean, Median and Mode[…]
Reynold’s Number The Reynold’s number is named after the British Physicist Osborne Reynold’s. He discovered this while observing different fluid flow characteristics like flow of a liquid through a pies and motion of an airplane wing through the air. He also observed that the type of flow can transition from laminar to turbulent quite suddenly. Read more about Reynold’s Number[…]
Stefan Boltzmann Law What is Stefan Boltzmann Law? The Stefan – Boltzmann Law deals with the black body radiation. It states that the total energy radiated per unit surface area of a black body in unit time is directly proportional to the fourth power of the black body’s thermodynamics temperature. Formula to find the Stefan Read more about Stefan Boltzmann Law[…]
Shanmugha Arts, Science, Technology & Research Academy (SASTRA) 2019 Notification Released The dreams of its founding fathers took shape in 1984 in the form of Shanmugha College of Engineering, which is now renamed, SHANMUGHA ARTS, SCIENCE, TECHNOLOGY & RESEARCH ACADEMY (SASTRA). Our programmes, infrastructure, teaching-learning, etc., are among the country’s finest. SASTRA has always been Read more about Shanmugha Arts, Science, Technology & Research Academy (SASTRA) 2019 Notification Released[…]
Logical Connectives (or) Sentential Connectives Two or more statements are combined to form a compound statement by using symbols. These symbols are called logical connectives. Logical connectives are given below. Word Symbols And ˄ Or ˅ Implies that (if … then) ⇒ If and only if (implies and is implied by) ⇔ Example: The statement Read more about Logical Connectives (or) Sentential Connectives[…]
Passion Distribution It is limiting case of binomial distribution. Let the number of events n is large (n→∞) and probability of success in each experiment is 0 and np = λ (say) . Where r = 0, 1, 2, … And λ = np. Here, λ is know as parameter of Poisson distribution. P (r Read more about Passion Distribution[…]
Doppler Effect Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. It was discovered by Christian Johann Doppler who described it as the process of increase or decrease of starlight that depends on the relative movement of the star. What is Doppler Effect? The Read more about Doppler Effect[…]