Surprise your teachers with amazing score in Physics !

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 …

Learn the principles to score better in Physics practicals and viva

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 …

Questions asked in Physics Viva Voce for Class 12 Physics Practical

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 …

Questions from Physics Viva

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 …

What Type of questions are asked in Viva Voce?

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 …

Viva help for Optics Experiments

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 …

Part -2 (Electricity Based Experiments :: Viva)

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 …

Viva Voce Questions from OHM’S LAW, METRE BRIDGE, POTENTIOMETER, GALVANOMETER AND OTHER EXPERIMENTS FROM ELECTRICITY AND MAGNETISM

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 …

What is wrong is wrong !

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 …

Prepare for Physics oral test too during lockdown

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

How to Crack NTSE exam?

NTSE stands for National Talent Search examination.