opposite words

Then term 'Xerography'; the use of Photoelectric phenomena to transfer an image from one sheet of paper to another comes from the Greek words for "dry" and "writing". Dry copying is based on the principle that materials with opposite electrical charges attract one another and th..

The Paulis exclusion principle states, that no two electrons in an atom can have the same values of all the four quantum numbers. If one electron in the atom has the quantum numbers n = 1, l = 0, m = 0 and s = +1/2, no other electron can have the same four quantum numbers. In other words..

A compound must be chiral for it to exhibit optical activity. Chiral is derived from the Greek word cheir meaning hand. A chiral molecule is one that is not super imposable on its reflection. For e.g., your left hand is a mirror image of your right hand. They are not super imposable. Ther..

Resistivity of a material is the resistance between the ends of a conductor of length one metre and area of cross-section of one square - metre. Unit of (resistivity) is Ohm-metre In other words, resistivity of a material is the resistance between the opposite faces of a unit cu..

Introduction - Acids, bases and salts are three main categories of chemical compounds. These have certain definite properties which distinguish one class from the other. The sour taste of many fruits and vegetables, lemon for instance, is due to various types of acids present in them. The digestive..

The anode is a region of deficiency of electrons and hence anions give up electrons here. They migrate to the anode to give up as many electrons as they have negative charges. Hence the electrode at which oxidation takes place is anode (the positively charged electrode). In this case, the chlorid..

According to this rule, electron pairing will not take place in orbitals of same energy (same sub-shell) until each orbital is first singly filled with parallel spin. In other words in a set of orbitals having same energy (degenerate orbitals), the electrons distribute themselves to occup..

>So, the velocity of the light body after collision, is nearly equal (in magnitude) and opposite to its velocity before collision. In other words, the light body transfers only a small fraction of its kinetic energy to the massive body. From equation (vii), So, the velocity of t..

. i.e., a to and fro motion. A given point in the path is crossed by the body in opposite directions at regular intervals. This is called oscillatory motion. All oscillatory motions are periodic but not all periodic motions are oscillatory. On observing an oscillating system, like a loade..

L.C. Oscillation - Capacitors and inductors are capable of storing energy in the electric field and magnetic field respectively. No A.C elements i.e., capacitor, inductor are pure. In other words each of them do have some resistance. The charges or current through these elements lose thei..