Explain how lightning is formed and discuss guidelines for athletes and fans to avoid injury
Water and ice move around inside the cloud; forced up by warm air currents, down by gravity
and compressed in the cloud. Just as rubbing balloon c
What is the minimum distance between the object and the image in a double convex lens to have a real
We see an object because light from the object travels to our eyes as we sight along a line at the object.
Similarly, we see an image of an object
A chemical bond is the phenomenon of chemical species like atoms held together by electrostatic
or electronic forces. Of several types of chemical bonds, a special type exists in the molecule of
boron hydride BH3 which exists as a dimer B2H6 molecule. It
Elimination reactions are a class of organic chemical reactions in which a pair of atoms or groups
of atoms are removed from a molecule, usually through action of acids, bases or metals and by
heating to a high temperature. It is the principal process by
Magnetic fields generated by current-carrying wires:
Circular magnetic fields are generated around current carrying wires. Strength of these fields varies
directly with size of the current flowing through wire and inversely to distance from the wire.