Buy Practical/Lab Manual Physics to the latest syllabus and pattern for Central Board of Secondary Education (CBSE), Navodaya and KendriyaVidyalaya based on NCERT Guidelines.

NCERT Physics Practical/Lab Manual Class 12

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According to the latest syllabus and pattern for Central Board of Secondary Education (CBSE), Navodaya and KendriyaVidyalaya based on NCERT Guidelines.

Book Code : 0457/2646

ISBN : 978-93-5167-972-1

Language : English

Edition : Latest

Availability : In Stock

Authors : Dr. J. P. Goyal & Er. Meera Goyal

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Book Content

SECTION : A
EXPERIMENTS

1. To determine resistance per cm of a given wire by plotting a graph for potential difference versus current.2.To find resistance of a given wire using meter bridge and hence determine the specific resistance (Resistivity) of its material. 3. To verify the laws of combination (Series/Parallel) of resistance using a meter bridge. 4. To compare the e.m.f. of two given primary cells using potentiometer. 5. To determine the internal resistance of a given primary cell (e.g. Leclanche cell) using potentiometer. 6.To determine the resistance of a galvanometer by half-deflection method and to find its figure of merit. 7 A. To convert a given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same. 7 B. To convert a given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same. 8. To find the frequency of AC mains with a sonometer and horse-shoe magnet.    
SECTION : B
EXPERIMENTS

1. To find the value of v for different values of u in case of a concave mirror and to find the focal length 2. To find the focal length of a convex lens by plotting graph between u and v or 1/u and 1/v. 3. To find the focal length of a convex mirror, using a convex lens. 4. To find the focal length of a concave lens, using a convex lens. 5.To determine the angle of minimum deviation for a given prism by plotting a graph between the angle of incidence and angle of deviation. 6. To determine refractive index of a glass slab using a travelling microscope. 7. To find the refractive index of a liquid by using a convex lens and a plane mirror.  8. To draw I-V characteristics curve of a p-n function in forward bias and reverse bias. 9. To draw the characteristics curve of a zener diode and to determine its reverse breakdown voltage. 10. To study the characteristics of a common-emitter n-p-n or p-n-p transistor and to find out the values of current and voltage gains
SECTION : A
ACTIVITIES

1. To measure the resistance and impedance of an inductor with or without iron core.  2. To measure resistance voltage (AC/DC), current (AC) and check continuity of given circuit using multimeter. 3. To assemble a household circuit comprising of three bulbs, three (on/off)switches, a fuse and a power source. 4. To assemble the components of a given electrical circuit. 5. To study the variation in potential drop with length of a wire for a steady current. 6. To draw the diagram of a given open circuit comprising atleast a battery, resistor/rheostat, key ammeter and voltmeter. Make the components that are not connected in proper order and correct the circuit and also the circuit diagram. 
SECTION : B
ACTIVITIES

1. To study effect of intensity of light (by varying distance of the source) on an LDR (Light Depending Resistor). 2. To identify a diode, a LED, a transistor, an IC, a resistor and a capacitor from mixed collection of such items 3. Use a multimeter to : (i) identify the transistor, (ii) distinguish between n-p-n and p-n-p type transistor, (iii) see the unidirectional flow of current in case of a diode and a LED, (iv) Check whether a given electronic components (e.g diode, transistor or IC) is in working order. 4. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab. 5. To observe polarisation of light using two polaroids. 6. To observe diffraction of light due to a thin slit. 7. To study the nature and size of the image formed by : (i) convex lens, (ii) concave mirror on a screen by using candle and a screen for different distance of the candle from the lens/mirror. 8. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
SUGGESTED INVESTIGATORY PROJECT
1. To study various factors on which the internal resistance/EMF of a cell depends. 2. To study the variations in current following in a circuit containing L.D.R. because of variation. (a) In the power of incandescent lamp used to illuminate the L.D.R. keeping all the lamps in fixed  position. (b) In the distance of a incandescent lamp (of fixed power) used to    illuminate the L.D.R. 3. To find the refractive indices of (a) Water (b) Oil (Transparent) using a plane mirror, an equi convex lens (made from a glass of known refractive index) and an adjustable object needle. 4.To design an appropriate logic gate combination for a given truth table. 5. To investigate the relation between the ratio of : (i) Output and Input voltage (ii) Number of turns in secondary coils and primary coils  of a self- designed transformer. 6. To investigate the dependence of angle of deviation, on the angle of incidence, using a hollow prism filled one by, with different transparent fluids.7. To estimate the charge induced on each one of the two identical styrofoam balls suspended in a vertical plane by making use of Coulomb’s Law. 8. To study the factors on which the self-inductance of a coil depends by observing the effect of this coil, when put in series with a resistor/bulb in a circuit fed up by an ac source of  adjustable frequency. 9. To study the earth’s magnetic field using a tangent galvanometer. 
APPENDIX
Some Important Tables of Physical Constants 
Logarithmic and other Tables 

Book Details
  • Author/Authors : Dr. J. P. Goyal & Er. Meera Goyal
  • Class : 12
  • Page No. : 168
  • Year : 2024
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