Question

 plzzz its urgent !!any tips that someone can give me for my practical exam class12 for physics

Answer 1

yes don't take much tension....it depends on u that how ur portions of practical as well as of academics are prepared...ys the examiner can ask anything of ur academics also...n if u are nt prepared at this level....then one tip is that you should prepare one chapter perfectly....n be confident infront of the examiner...all the best

Answer 2

Section

CBSE Class 12 Physics practical exam tips and tricks



India Today OnlineNew DelhiFebruary 9, 2014UPDATED 18:09 IST



CBSE Class 12 Physics practical exams

As exams approach, all Class 12thstudents are most likely busy in preparations, but have you studied for your practical exams? An essential part of the CBSE final examinations, the 30 marks worth practical exam is often overlooked and ignored. Do you know all your theorems, laws of motion and numericals, do you know all the experiements and viva answers in  your Physics Class 12 syllabus? Here are some tips!

Physics practical syllabus:
Two experiments one from each section 8+8 Marks
Practical record (experiments & activities) 6 Marks
Project 3 Marks
Viva on experiments & project 5 Marks

SECTION A: Experiments
1. To find resistance of a given wire using metre bridge and hence determine the 
specific resistance of its material 
2. To determine resistance per cm of a given wire by plotting a graph of potential 
difference versus current. 
3. To verify the laws of combination (series/parallel) of resistances using a metre 
bridge. 
4. To compare the emf of two given primary cells using potentiometer. 
5. To determine the internal resistance of given primary cell using potentiometer. 
6. To determine resistance of a galvanometer by half-deflection method and to find 
its figure of merit. 
7. To convert the given galvanometer (of known resistance and figure of merit) into 
an ammeter and voltmeter of desired range and to verify the same. 
8. To find the frequency of the a.c. mains with a sonometer.

Tips:
- Study the theory behind the experiment thoroughly
- Graphs are an important part of Physics practical exams, understand and practice the graphs you will need to know for any given experiment
- Revise your practical notes 
- Visualize and draw rough diagrams for the experiments to prepare 
- Each experiment is based on a principle of physics; it's essential to know which principle is used behind which experiment respectively
- The principles and methodology is often asked during viva voice, so you should know the basics of the experiment
- During the experiment remain calm and document the entire procedure you follow
- If there is any doubt or confusion regarding an experiment, clear your doubts with your teacher
- Important experiments are also available online in video format for quick revision