A Legend of the Northland By Phoebe Cary About the Poet Image Reference: mypoeticside.com Phoebe Cary and her sister Alice Cary were 19th century American poets who grew up writing together, Alice being the older by four years. They initially published their poetry jointly in 1849, and then each went on to publish volumes of … Read more
The Snake and the Mirror By Vaikom Muhammad Basheer (Translated from the Malayalam by V. Abdulla) About the Author Vaikom Muhammad Basheer V. Abdulla Image Reference: youtube.com … Read more
The Lake Isle of Innisfree By William Butler Yeats About the Poet Image Reference: nobelprize.org William Butler Yeats was born in 1865 at Sandy mount in County Dublin, Ireland. He was educated in London. His interest in poetry developed at an early age due to his fascination in the Irish legends. He was a versatile … Read more
A Truly Beautiful Mind Introduction This lesson gives us a brief life history of a great scientist – Albert Einstein. As a child, he had no signs of greatness .His mother thought that he was a freak. When he started speaking, he spoke everything twice. He was boring for other children .So he played by … Read more
Know More About Albert Einstein Image Reference: chanraribil.gq A Truly Beautiful Mind (Source: Beehive – An NCERT Text Book for Class IX English) 1. ALBERT Einstein was born on 14 March 1879 in the German city of Ulm, without any indication that he was destined for greatness. On the contrary, his mother thought Albert was … Read more
Band Theory of Solids Energy Band theory is used to study the behaviour of solids as conductors (metals), insulators and semiconductors. Electrons of each isolated atom have discrete energy levels. When two similar atoms are brought closer, then there is an interaction between the valence electrons of these two. This interaction causes a splitting of … Read more
Emission of electrons At room temperature the free electrons move randomly within the conductor, but they don’t leave the surface of the conductor due to attraction of positive charges. Some external energy is required to emit electrons from a metal surface.The minimum energy required to emit the electrons which are just on the surface of … Read more
Physical Quantities All the quantities in terms of which laws of physics are described, and whose measurement is necessary are called physical quantities. Units The standard scale which is used to measure value of any physical quantity is called units. Fundamental Units Those physical quantities which are independent to each other are called fundamental quantities … Read more
Nucleus Positive charge of an atom is concentrated in the nucleus due to positively charged particles known as protons. Proton is a positively charged particle. The number of protons in the nucleus is called atomic number (Z) of the atom. The sum of the number of protons (Z) and the number of neutrons is called … Read more
Thomson’s Atom Model According to Thomson, an atom is a sphere of positive charges of uniform density of about 10-10 m diameter in which negative charges i.e. electrons are embedded like plums in the pudding. Thomson’s model could not explain the presence of discrete spectral lines emitted by hydrogen and other atoms. Hence efforts were … Read more
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