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Branches of Science

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Science is broadly classified into two categories:  Natural Sciences or Real Science                                        Social Science Natural Science is the branch of science which deals with the study of universe (living organisms and non living systems) each and every thing.The law and theories in natural science does not change with place,people and time.So, its a study of  unchanged reality. Example : If an experiment is performed(correctly and accurately) by me or you its result does not change. Social Science is the systematic study of human behaviour and society. It is changing reality. Example: Economy of different countries is different. Initially, Science is studied under Philosophy .  But with the passage of time, as the man acquired more knowledge and experiment to validate facts(philosophy) science is considered as separate subject. ...
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CBSE CLASS X SCIENCE CHAPTER ELECTRICITY LESSON PLAN 1

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CBSE CLASS X SCIENCE LESSON PLAN LESSON PLAN 1 CHAPTER 12 ELECTRICITY CBSE CLASS X SCIENCE e-LESSON PLAN CHAPTER ELECTRICITY BOARD: CBSE CLASS: 10TH (X) SUBJECT: SCIENCE THEME: PHYSICS ( HOW THINGS WORK) UNIT : EFFECTS OF CURRENT CHAPTER: ELECTRICITY TOPIC : ELECTRIC CURRENT AND CIRCUITS PRE-REQUISITE KNOWLEDGE: Metal and Non-metal, concept of conductor and insulators, Structure of atom, concept of electrons, methods of charging etc. CBSE CLASS X SCIENCE LESSON PLAN CHAPTER ELECTRICITY TEACHING AIDS:  In addition to general teaching tools like Green Board, chalk, duster, white board, marker of different color, smart class, etc the teacher will use Electric devices like Ammeter, Voltmeter, Electric cell, battery , wire , plug key, etc. The References used will be:  Text book NCERT Science class X University Physics etc. METHODOLOGY (PEDAGOGY): Demonstration cum lecture method. Activity based teaching in which active particip...
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CLASS 12TH PHYSICS EXPERIMENT To determine resistance of a galvanometer by half deflection method and to find its figure of merit.

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To determine resistance of a galvanometer by half deflection method and to find its figure of merit. Aim: To determine resistance of a galvanometer by half deflection method and to find its figure of merit. Apparatus: Moving coil galvanometer , two resistance boxes , two one way keys , connecting wires , sand paper and a battery. Theory: To find resistance of galvanometer (G) Galvanometer of resistance G when connected in series with a resistance R and a battery of emf E , the current is I=E/(R+G) if 𝚹 is the deflection. K 𝚹  =  E/(R+G)   Now such a resistance S is connected in parallel with G , that the deflection becomes half i e 𝚹/2, then     K( 𝚹/2) = E/(R + (GS/(G+S)) Using K 𝚹 in this we have E/(R+G)2 = E(G+S) / R (G + S ) + GS , on solving G = RS/ (R-S) Half deflection method Class 12th Physics Practical To find figure of merits (k) Figure of merit is current per unit deflection i e ,  k=I/ 𝚹 k= I/ ?...
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