GUIDLINES POINTS TO REMEMBER The following points may
GUIDLINES
POINTS TO REMEMBER The following points may be kept in mind while preparing for the examination. 1. You need to remember the BASIC DEFINITIONS, STATEMENT OF LAWS, RULES and the SI Units relevant to each unit. 2. For the LAWS, it is important to know their mathematical representation and the limits/constraints under which that law is valid. Using a law, beyond its range of validity, would lead to incorrect results/interpretations.
3. Always try to understand the ‘Physical meaning’ of the different terms in a mathematical expression, or statement of a law. For example, r, in the statement of Coulomb’s Law (or Biot-Savant Law), implies the position vector of the ‘field point’ w. r. t. the point charge/charge element (or current element) contributing to the electric field (magnetic field). In a similar way, always try to know about the physical meaning of the different expressions /equations.
4. There are certain well known ‘aids to memory’ which help us to remember, and recall, the relevant facts / information with ease. For example the well know sentence B. B ROY of Great Britain, had a very Good WI F E is a good STATMENT for remembering the colour code for carbon resistors. i) The equivalence 1 e. V 1234 nm And 1 nm 1234 e. V Prove very useful for solving problems on photo elementary
The equivalence B= 1. 234 nm works as a useful a V And quick method for finding the de Broglie wave length associated with an electron accelerated through a potential V. In radioactivity, it is easy to show that the number of atoms/molecules left over a time would be ½ n where n equals the ratio of t to the half life (say T) of that element.
We have to often calculate half life from decay constant and vice-versa. Here it may be useful to remember that the decay constant corresponding to a half life of 1 year would be nearby 2. 2 x 10 S-1. One may remember it as Half life of 1 year corresponds to a decay constant of 2. 2 nano hertz in terms of its unit (second in verse). For a half life of n years, the decay constant would become (2. 2/n) nanohertz and so on.
5. For that ‘FINAL REVISION’ a day before the examination, just go through the SUMMARY at the end of each unit in the NCERT book. You need to have a ‘re look at’ or revision of only those points about which you feel a little less confident. Always stay relaxed and confident of yourself. Getting ‘worked up’, or stressed and a loss of ‘self confidence’ never helps. Continuous hard and regular studies always help one to face up all challenges in a cool and calm manner.
G U S L U F E US S N O I GEST
1. Identify and follow your own style of learning 2. Remember it is necessary as well as important to understand , and develop, good study habits. 3. Ask yourself the following questions: Am I comfortable with the basic concepts of subject learnt by me earlier? Am I comfortable with the basic concepts of mathematics needed for my subject? Am I an active learner? Do I do my studies in a focused way? Can I translate mathematical expression, equations and graphs into word equations and expressions and vice- versa? Do I try to have HANDS -ON experience of my theory concepts in my practical class, whenever and wherever possible?
Do I supplement my class room learning by reading other books or by visiting relevant sites on the Internet? Do I regularly try to solve numerical problems to understand, assimilate and apply theoretical concepts taught to me? Do I attend my classes regularly and listen to the teacher attentively? Do I try my best to have my doubts and queries clarified through discussions with my teacher or my fellow students? Do I set aside adequate and regularly scheduled study time in a distraction free environment? If your answer to any of these questions is a NO , you need to take immediate corrective measures. 4. Remember that you need to go through the whole of the prescribed syllabus, Without skipping or ignoring any topic.
5. The NCERT book defines the DEPTH of coverage of each topic given in the syllabus. 6. It is always a good idea to go through the SUMMARY given at the end of each unit and to have a relook , if needed, at any point , or concept, that does not appear to be clear from the summary. 7. Always maintain a positive outlook and have full faith and confidence in yourself.
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