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Welcome to Stoplearn.com online secondary school 2 Third term. Here you can learn Mathematics for Senior Secondary School 2 online […]
Multiplication and Division of number greater than one using logarithm To multiply and divide numbers using logarithms, first express the […]
Welcome to Stoplearn.com online secondary school 3. Here you can learn Mathematics for Senior Secondary School 3 online free of […]
Introduction Radioactive decay is the spontaneous radioactive disintegration of an atomic nucleus, resulting in the release of energy. Some atoms […]
CONDUCTION OF ELECTRICITY IN GASES INTRODUCTION Electrons: When a high tension discharge passes between electrodes sealed into a partially evacuated vessel, […]
Spectra Embedded in an atom which consists of a nucleus that is positively charged and which revolves round the orbit […]
The discreteness of atomic energy levels was first shown directly in the Franck-Hertz experiment. This experiment is one of the […]
Photoelectric Effect Applications Below are the applications of Photoelectric effect: The photoelectric effect is used in the photoelectric cell which […]
PHOTOELECTRIC EFFECT INTRODUCTION In 1887, photoelectric effect was invented by the scientist H. Hertz. When we passing a light into a material, […]