ASL – Topics for Speaking Skill Test 1. Most memorable moment of my life 2. My reading habits 3. Population Explosion 4. Co-education 5. The trip I enjoyed most 6. Real learning through experience 7. My favourite T.V. programme 8. What I did during last vacation 9. Foreign channels are a threat to our culture … Read more
Sample Listening Test Paper, 2019-20 English Core Class XI/XII Time: 60 Minutes M.Marks: 20 Marks Instructions: 1. Answer all the questions. 2. In this part you will listen to some short extracts. As you listen to each one, answer the question. 3. Before you begin to listen, read the questions quickly and get familiar with … Read more
This post “The Third Level” has a brief life history of the poet, introduction, theme, word meanings, summary, main points, important extracts, questions, and answers with all NCERT solutions to facilitate the understanding of the lesson. Academicseasy is presenting a fully revised and updated study material of the lesson in accordance with the new latest … Read more
Split-Up of Syllabus, 2019-20 English Core Class-XII Month Syllabus to be Covered No. of Periods No. of Working Days Text-book/Section Lessons/Topic/Activity April Flamingo My Mother at Sixty-Six 2 2 The Last Lesson 4 4 Lost Spring 4 4 Reading Skills Note-making & Summarizing 3 3 Vistas The Third Level 4 4 Writing Skills Notice Writing … Read more
Factual Description A factual description of a place or a person or an object requires details which must logically be woven in a paragraph with appropriate cohesion devices. The description should not appear sketchy, fragmented or loose. The appropriate format and style must be followed. (a) Description of a place/building must include the location, outside … 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
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
In 1895, Wilhelm Konard Roentgen discovered X-rays while working with a discharge tube. X means unknown. X-rays are electromagnetic radiation of very short wavelength and high energy which are emitted when fast moving electrons or cathode rays strike a target of high atomic mass. Production of X-rays Coolidge X-ray tube : Coolidge X-ray tube used … Read more
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