CBSE Science exam was today (20 March 2012). How was the exam? Many students reported that the exam was quite easy and could easily score 90% and above. How was the Science exam for you? …
New Delhi: The Indian Institutes of Technology (IITs) have announced the date for the Joint Entrance Examination (JEE) 2010, for admission to various undergraduate courses, as April 11, 2010. The Joint Entrance Exam 2010 (JEE-2010), which is a pre-req…
The weightage to various assessments will be as detailed below for classes up to IX FA1 – 10% FA2 – 10% SA1 – 30% FA3-10% FA 4-10% SA2 -30% Thus the two terms have equal …
In the wake of the constant raids and charges of fraud on various universities, U.S Embassy has said that Indian students must choose the college with caution. The suggestion was given after authorities in Annandale, …
DTE revises schedule for centralised admission to engg diploma seatsTimes of IndiaPUNE: The state Directorate of Technical Education (DTE) has revised the centralised admission process (CAP) schedule for the post-SSC engineering diploma …and more&nbs…
Young adults who smoke tobacco from a water pipe, or hookah, are more likely to use illicit drugs, a cross-sectional Canadian study showed.
Wellington: An Indian-origin student of New Zealand’s Victoria University was part of a team that won a debating competition in which 100-odd varsities take part every year.Udayan Mukherjee was part of the three-member team of Victoria University which…
Jan 24
Do you want to bring a big surprise to your teachers, parents and friends by scoring amazing marks in Physics exam? Here are some tips! Have you been branded as a slow learner or a weak students in Physics so far? Do you fear of failure in Physics in the forthcoming examination? Is Physics a …
Permanent link to this article: http://cbsephysics.in/surprise-your-teachers-with-amazing-score-in-physics/
Jan 22
Hello! Dear students, CBSE Practical Exams started on 16th and will be completed by15 Feb. Do you know that Practical marks play an important part in giving you a decent percentage? In this competitive world each and every mark is important and will decide you future. So try your best to score the maximum in …
Permanent link to this article: http://cbsephysics.in/learn-the-principles-to-score-better-in-physics-practicals-and-viva-2/
Jan 27
Q1. Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc? Ans: In this arrangement all natural numbers upto 10000 ohms (and above) can be realized. 1, 2, 2+1=3,2+2=4,5,5+1=6,5+2=7,5+2+1=8,5+2+2=9 etc Try it yourself to get all numbers from 1 to 10000 Q2. Why wire is double folded in resistance box? Ans: The …
Permanent link to this article: http://cbsephysics.in/questions-asked-in-physics-viva-voce-for-class-12-physics-practical/
Jan 29
What happens to the resistivity of a wire when it is doublefolded? How does the resistance of a wire depend on its dimensions? Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc? Why constantan or manganin wires are used for making the resistance coils in resistance box? What is a standard …
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Jul 26
The methodology of questioning varies from examiner to examiner. The normal way of questioning is to start from the experiment you are alloted. Example: What experiment are you doing? Ans: To determine the value of unknown resistance using metre bridge (Don’t say just metre bridge or unknown resistance alone; you should tell the complete aim …
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Jul 26
Define refractive index. WHat is the least value of refractive index possible? What can you infer if someone says that he has a medium of refractive index less than one? Define focus. Define pole of a spherical mirror. Define optic centre. What is spherical abberration? WHat is chromatic abberration? What is the focal length of …
Permanent link to this article: http://cbsephysics.in/viva-help-for-optics-experiments/
Jul 26
What is Ac? WHat is DC? Distinguish unidirectional current and direct current. Define RMS value of AC. What do you mean by frequency of AC? Why the power supply to our houses are AC and not DC? What are the advantages of AC over DC? What is a choke coil? WHy a choke coil is …
Permanent link to this article: http://cbsephysics.in/part-2-electricity-based-experiments-viva/
Jul 26
What happens to the resistivity of a wire when it is doublefolded? How does the resistance of a wire depend on its dimensions? Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc? Why constantan or manganin wires are used for making the resistance coils in resistance box? What is a standard …
Permanent link to this article: http://cbsephysics.in/viva-voce-questions-from-ohms-law-metre-bridge-potentiometer-galvanometer-and-other-experiments-from-electricity-and-magnetism/
Jan 28
What is wrong is wrong If someone, however mightier, announces one fine morning that “right is wrong and wrong is right”And the majority follows…But right will remain right and wrong will remain wrongAt such junctures, a conscious effort to use conscience and common sense should be made by all to accept right only as right …
Permanent link to this article: http://cbsephysics.in/what-is-wrong-is-wrong/
Oct 28
Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown
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Oct 20
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Oct 18
Contents: Electric Charges, Conservation of Charge, Coulomb’s Law – force between two point charges, forces between multiple charges, superposition principle and continuous charge distribution. Introduction Electrostatics is the branch of Physics which deals with electric charges at rest and their properties. When two suitable objects are rubbed against each other, charges appear on them. The …
Permanent link to this article: http://cbsephysics.in/electric-charges-cbse-physics-quick-revision-module-1/
Oct 16
Many students consider Physics as a difficult subject. But, is it true? I have seen many students taking active interest in Physics after attending a few sessions. So, Physics is not basicallly a difficult subject, but an interesting one. One will not be able to enjoy a game unless he knows the rules and techniques …
Permanent link to this article: http://cbsephysics.in/what-makes-physics-difficult/
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