NEWTON’S FIRST LAW OF MOTION: Everybody continues to be in a state of rest or uniform motion in a straight line, except in so far as it be compelled by an externally impressed force to act otherwise.INERTIA: It is the inherent property of a body, by virtue of which, the body cannot change its state Read more about Newton’s Law of Motion[…]
Rank is defined for any matrix (need not be square). Some important concepts: ⇒ Sub matrix of a matrix: Suppose A is any matrix of the type m x 72. Then a matrix obtained by leaving some rows and some columns from A is called sub-matrix of A. ⇒ Rank of a Matrix: A number Read more about Rank of the matrices of 2, 3, 4 orders[…]
Forces of attraction and repulsion between interacting atoms/molecules other than electrostatic or covalent bonds are called inter molecular forces. Attractive inter molecular forces: Known as van der Waal’s forces Types: 1. Dispersion forces/ London forces: Force of attraction between temporary dipoles. Always attractive. Significant only at short distances between interacting particles Magnitude depends on polarizability Read more about Intermolecular forces[…]
Every particle in this universe attracts every other particle with a force that is proportional to the product of these masses and inversely proportional to the square of the distance between them.Thus, F = Gm₁m₂/r², where and are the gravitational masses of the particles, r is the separation between them and G is Universal Gravitational Read more about NEWTON’S LAW OF UNIVERSAL GRAVITATION[…]
SOLUTION OF HOMOGENEOUS SYSTEM OF LINEAR EQUATIONS: Let AX = 0 be a homogeneous system of simultaneous linear equations with n-unknowns. Let us now discuss two cases: CASE I: When |A| ≠ 0. In this case, A-1 exists. AX = 0 A-1 (AX) = A-10 (A-1A) X = 0 InX = 0 X = 0 Read more about System of Equations using Matrices II[…]
Polarity: All homonuclear diatomic molecules will have zero polarity. Example: O2, N2, F2, H2. It mainly arises due to differences in electronegativity of bonded atoms. A covalent bond, in which electrons are shared unequally and the bonded atoms acquire partial positive and negative charge, is called a polar covalent bond (or) a covalent bond (or) Read more about Bond Parameters II[…]
According to Newton’s law of cooling the rate of loss of heat, dQ/dt of the body is directly proportional to the different of temperature ΔT = (T2 – T1) of the body and the surroundings. The law holds good only for small difference of temperature. Also the loss of heat by radiation depends upon the Read more about Newton’s law of Cooling[…]
Consider the following system of in linear equations in n unknowns: a11 x1 + a12 x2 + … + a1n xn = b1 a21 x1 + a22 x2 + … + a2n xn = b2 … … … … … … … … am1 x1 + am2 x2 + … + amn xn = bm Read more about System of Equations using Matrices[…]
1. Bond Length: It is the equilibrium distance between the nuclei of two bonded atoms in a molecule. The covalent radius is the radius of an atom’s core which is in contact with the core of an adjacent atom in a bonded situation. If two similar atoms are joined by a covalent bond in the Read more about Bond Parameters[…]
The Telangana government has cancelled EAMCET-2 and announced the scheduling of EAMCET-3 for admissions into MBBS, BDS courses in Telangana on Tuesday evening. The exam will be held on September 11. Telangana government has replaced EAMCET convener and appointed JNTUH Registrar Yadaiah as the new convener. The decision has been taken after a review meeting Read more about TS EAMCET-II SCRAPPED[…]