Radioactivity An atom is made up of three fundamental subatomic particles protons, neutrons and electrons. Out of these three particles, protons and neutrons located at the centre of the atom as a hard and dense part known as nucleus. The rest of the part of atom contains negatively charged particles called as electron which balance out the Read more about Radioactivity[…]
Differentiation by Substitution Methods Substitution is useful to reduce the function into simple form. For problems involving inverse trigonometric functions, first try for a suitable substitution to simplify it and then differentiate it. If no such substitution is found, then differentiate directly. Some standard substitutions are given below. S.No Expressions Substitutions 1 x = atanθ Read more about Differentiation by Substitution Methods[…]
Ohm’s Law The electricity is the flow of charges from positive to negative or vice – versa. It is also said the flow of electrons. The one of important law of electricity is Ohm’s law. This is also called a fundamental law of electricity. It gives the relationship between basic electrical quantities. These basic quantities Read more about Ohm’s Law[…]
Derivative of a Function (Chain Rule) and Composite Function Derivative of a Function (Chain Rule): If y is a differentiable function of t and t is a differentiable function of x i.e., y = f(t) and t = g(x) then . Similarly, if y = f(u ), where u = g(v) and v = h(x) then Read more about Derivative of a Function (Chain Rule) and Composite Function[…]
Conditional Probability The probability of B under the assumption that A takes place. It is denoted by P(B/A) and is called the conditional probability of B given that A takes place Sometimes the probability of a given event depends on the occurrence or non-occurrence of some other event. Suppose A and B are two events in a Read more about Conditional Probability[…]
Photo Electric Effect Photoelectric effect or photoelectric emission is a phenomenon where electrons are ejected from the surface of a metal upon shining light on it. Energy which is contained within the light of incidence is getting absorbed by electron particles within the metal which escape the metallic surface given enough energy. The photoelectric effect Read more about Photo Electric Effect[…]
Karunya Entrance Examination (KEE 2018) Notification Released What is KEE? Karunya Institute of Technology and Sciences (Deemed to be University) offers various Undergraduate programmes. Students are free to choose the subjects they study every semester. This helps them follow their dreams without being bounded by a restricted curriculum. Eligibility: A pass in 10+2 or equivalent Read more about Karunya Entrance Examination (KEE 2018) Notification Released[…]
Maharashtra Common Entrance Test 2018 (MHT CET) Notification Released What is MHT CET? The Government of Maharashtra has established “ADMISSIONS REGULATING AUTHORITY AND STATE COMMON ENTRANCE TEST CELL” as per the provisions of the Maharashtra Unaided Private Professional Educational Institutions (Regulation of Admissions & Fees) Act. 2015 (Mah. Act No. XXVIII of 2015). Eligibility Criteria: Read more about Maharashtra Common Entrance Test 2018 (MHT CET) Notification Released[…]
Limitations of Ohm’s Law In the year 1820 a French physicist, Andre Ampere made many discoveries on the nature of electricity. While a German physicist, Georg Ohm showed that the flow of an electric current through a wire depended on its ‘resistance’ and the potential difference between its ends. Ohm’s law is not a fundamental Read more about Limitations of Ohm’s Law[…]
Position of Roots of a Polynomial Equation Some results on roots of an equation: The following are results on the roots of a polynomial equation with rational coefficients: An equation of degree n has n roots, real or imaginary. Imaginary roots always occur in pairs i.e., if 2 – 3i is a root of an equation, then Read more about Position of Roots of a Polynomial Equation[…]