direct representation

The rate of change of position of a particle in a particular direction gives the velocity of the particle. It may also be defined as the time rate of change of displacement of a particle. Velocity is a vector quantit..

Covalent bonds are formed by the overlap of atomic orbitals. As orbitals have different shapes, it is difficult to represent the actual shape of the orbitals on the paper. Hence a pictorial notation is adopted with the following rules: An orbital is represented by a square box ( ) or a circle (O..

>In case of gas electrodes such as hydrogen the inert metal platinum, which serves as the electrical contact, is also written while representing the half-cell. A comma to indicate that they form one phase separates the two. Sometimes negative sign is put on the anode and positive sign on the cathod..

Rules for Determining the Direction of Magnetic Field - The direction of magnetic field around a current carrying conductor can be determined by using one of the laws given here. Rule Pictorial Representation Right Hand Thumb Rule Imagine that you are holding the condu..

Let PQ be the symbolic representation of the mountain (h), inaccessible for direct measurement. Let A and B be two points of elevation subtending angles q1 and q2 of the top of the mountain at ..

The blood enters and circulates in the interstitial spaces (space between the tissues). Open Circulatory System The exchange of materials between the cells and the blood is done directly. There are few blood vessels but they are not extensive. The blood vessels are open-ended as they open..

In this type of hybridisation one '2s' and one '2p x ' orbitals get hybridised to form two equivalent orbitals called 'sp' hybrid orbitals. The remaining 2p y and 2p z do not take part in hybridisation. The two unhybridised orbitals are directed along the 'y' and 'z' axes while the two..

. Let them cover equal distances in equal intervals of time i.e., their speed is the same. Can you tell where each of them would be after say 20 seconds? P and Q can move in any direction. To locate the exact position of P and Q we require their direction of motion als..

Naming Aromatic Compounds - Aromatic compounds are those carbocyclic compounds that contain at least one benzene ring. The ring of six carbons in benzene or any of its derivatives is termed benzene ring or nucleus. A benzene ring may be represented in any of the following way..