## Tuesday, 24 October 2017

### ncert e text book CLASS I TO XII

http://epathshala.nic.in/e-pathshala-4/flipbook/TEXT BOOK CLASS I TO XII

## Monday, 6 February 2017

### Practical class XII

Hey Friends.... Our all Practicals guide (Physics)
Amazing explaination :)
All Links and Topics given below :-
(According to Comprehensive Practical Physics)
Section A:-
1. To determine resistance per cm of a given wire by plotting a graph for potential difference versus current (Ohm's Law)
https://goo.gl/uawQJW .
2. To find resistance of a given wire using meter bridge and hence determine the resistivity (specific resistance) of its material. :- https://goo.gl/pzBq33
3. To verify the laws of combination (series) of resistances using a meter bridge. :- https://goo.gl/pzBq33

4. To verify the laws of combination (parallel) of resistances using a meter bridge. :- https://goo.gl/pzBq33

5. To compare the EMF of two given primary cells using potentiometer. :- https://goo.gl/6fAUY2

6. To determine the internal resistance of given primary cell using potentiometer. :- https://goo.gl/9LZ2NE

7. To determine resistance of a galvanometer by half-deflection method and to find its figure of merit. :- https://goo.gl/b3nSjv

8. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same. https://goo.gl/hgcnRR

9. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same. https://goo.gl/hgcnRR

10. To find the frequency of AC mains with a sonometer. :- https://goo.gl/pqaKE0

Section B :-
1. To find the value of v for different values of u in case of a concave mirror and to find the focal length. :- https://goo.gl/psgmaA

2. To find the focal length of a convex mirror, using a convex lens. :- https://goo.gl/kAT3Gn

3. To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v. :- https://goo.gl/KWmJ1X

4. To find the focal length of a concave lens, using a convex lens. https://goo.gl/W4INBc

5. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation. :- https://goo.gl/Rc1U8e

6. To determine refractive index of a glass slab using a travelling microscope. https://goo.gl/lLHCr2

7. To find refractive index of a liquid by using convex lens and plane mirror. :- https://goo.gl/sxjRiF

8. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias. :- https://goo.gl/S59IE0

9. To draw the characteristic curve of a zener diode and to determine its reverse break down voltage. https://goo.gl/SPPt9O

10. To study the characteristic of a common - emitter npn or pnp transistor and to find out the values of
current and voltage gains. https://goo.gl/o1V74z

## Sunday, 4 December 2016

sample question paper CLASSXII 2015 -16sample question paper 2015-16