Inverse square law of illumination :
The intensity of illumination of a surface by a point source of light varies directly with the illuminating power...
LAWS OF THERMO-DYNAMICS
First law of thermo-dynamics :
The heat produced in a mechanical work is in proportion to the work done.
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LAWS OF CHEMICAL COMBINATION
Laws...
Photo-electric effect :
It is the phenomenon of emission of electrons by substances when irradiated with light of a frequency greater than a certain minimum...
1. Law of combining weights :
Elements combine in the ratio of their combining weights or chemical equivalents; or in some simple multiple or sub-multiple...
1. Law of constant composition or proportion :
A definite chemical compound always contains the same elements chemically combined in the same proportions by weight.
Must...
LAWS OF CHEMICAL COMBINATION
1. Law of constant composition or proportion :
A definite chemical compound always contains
the same elements chemically combined in the
same proportions by...
