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MARCH2017Exam

PHYSICS

II PUC

OSWAAL KARNATAKA

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(iii)

• Latest Syllabus and Blueprint 5 - 16

• II PUC Solved Examination Paper - July 2016 17 - 24

• II PUC Solved Examination Paper - March 2016 25 - 35

• Topper’s Answers - March 2015 36 - 56

CONTENT

Chapter 1. Electric charges & fields 57-75

l Electric Field & Dipole

l Gauss's theorem and its Applications.

Chapter 2. Electrostatic Potential and 76 - 86

Capacitance

l Electrostatic Potential

l Capacitors and Capacitance

Chapter 3. Current Electricity 87 - 104

l Electric current, Resistance and cells

l Kircholf's Law & Applications

l Potentiometer & Applications

Chapter 4. Moving Charges and 105 - 113

Magnetism

l Magnetic field

l Ampere's Law and its Applications.

l Current carrying conductor and

Galvanometer

Chapter 5. Magnetism and matter 114 - 120

l Magnetic Dipole

l Magnetism

Chapter 6. Electromagnetic Induction 121 - 134

l Faraday's Laws and Lenz's Law

l Eddy Current, Self & Mutual

Inductance

Chapter 7. Alternating Current 135 - 151

l Alternating Current

l LCR Series Circuit

l Generator and Transformer

Chapter 8. Electromagnetic waves 152 - 158

l Displacement - Current

l Electromagnetic Spectrum

Chapter 9. Ray Optics and Optical 159 - 184

Instruments

l Reflection and Refraction

l Prism and Scattering of light

l Optical Instrument

Chapter 10. Wave Optics 185 - 203

l Huygen's Principles

l Interference

l Diffraction

l Polarisation

Chapter 11. Dual Nature of Radiation 204 - 217

and Matter

l Photoelectric Effect

l De-Broglie Relation

Chapter 12. Atoms 218 - 230

Chapter 13. Nuclie 231 - 243

l Radioactivity

l Mass Energy Relation

Chapter 14. Semiconductor Electronics 244 - 269

l Energy Bands

l Semiconductor Diodes and their

Applications

l Transistors and their Applications

l Logic Gates

Chapter 15. Communication Systems 270 - 288

l Communication System

l Modulation

l Internet Mobiles and GPS

PREFACE

(iv)

CBSE always believes in Global Trends of Educational Transformation. The CBSE curriculum

gets its lead from National Curriculum Framework – 2005 and Right to Free and Compulsory

Education Act – 2009. CBSE introduced CCE in the later half of 2009. CCE has been started to

improve the quality of Education and was meant to lessen the burden of studies on Students. CCE

stands for Continuous & Comprehensive Evaluation. The term 'Continuous' in CCE refers to

periodicity and regularity in assessment and the term 'Comprehensive' refers to overall assessment

of the learner, in both curricular & co curricular scheme of things.

These Oswaal CCE Question Banks for Classes IX & X have been written so as to supplement

the need of the students to prepare for these progressive assessments at school during the entire

year.

Oswaal CCE Question Bank has been divided into two sections: Summative Assessment (SA) &

Formative Assessment (FA). In the Summative section, chapters are arranged ‘TOPICWISE’ where

each topic is explained in detail and covers all typologies of Questions specified by CBSE, with well

labelled diagrams and high quality figures/diagrams for fast learning. Answers from CBSE

Marking scheme are highlighted in order to specify the correct method of answering questions for

attaining maximum marks.

Formative section of the book will assist the students to prepare for the frequent class room

based evaluation, both as an individual and as a group activity. The various formative techniques

include Quizzes, Chapter assignment, Work sheets, Projects, Seminar, Symposium, Action Plans,

etc. These activities have been elaborated by CBSE Board on www.cbse.nic.in. The students can

read through all these components while revising a chapter to be always prepared for the surprise

FA's in the class.

At last we would like to thank our authors, editors, reviewers and specially students who

regularly send us suggestions which helps in continuous improvement of this book and makes this

book stand in the category of “One of the Best”. Wish you all Happy Learning.

Why Topic Wise Question Banks Are A Better Choice than Previous Year’s Papers ?

Question Banks Previous Years’ Papers

1. Chapter-wise and Topic –wise presentation

in Question Banks facilitates systematic

study.

2. Question Banks can be referred to by the

students throughout the year as well as at

the completion of each chapter in school.

3. Question Banks, take into account any

changes in syllabus or layout and hence are

fully updated and aligned as per the latest

specifications by the Board.

1. Year Wise presentation restricts

methodical flow of learning.

2. These can be referred to only after the

completion of the full syllabus in school.

3. Previous Years' questions cannot be

changed and hence fail to be adept with

the latest Board specifications

–Publisher

(v)

UNIT-I

CHAPTER 1 : ELECTRIC CHARGES AND FIELDS (9 hours)

Electric charges and their properties: Additivity of charges, quantisation of charges and conservation of

charges - Statement, explanation (only in free space) and expression in vector form - Coulomb’s law:

Definition of SI unit of charge - Statement, application to find the force between Superposition principle :

multiple charges.

Electric field: Definition of electric field - Mention of expression for electric field due to a point charge -

Application of superposition principle to find electric field for a system of charges.

Continuous charge distribution: Definitions of surface, linear and volume charge densities - Mention of

expression for electric field due to a continuous charge distribution.

Electric dipole: Definition of electric dipole and dipole moment - Derivation of electric field due to a dipole (a)

at any point on its axis (b) at any point on its equatorial plane -Derivation of the torque on an electric dipole in

an uniform electric field and expression in vector form.

Electric field lines: Electric flux: Properties and representation - Concept of electric flux - Area element vector,

electric flux through an area element - Gauss’s Law: Statement and its applications to find electric field due to

(a) infinitely long straight charged wire, (b) uniformly charged infinite plane sheet and (c) uniformly charged

thin spherical shell (field inside and outside), Numerical Problems.

UNIT-II

CHAPTER 2 : ELECTROSTATIC POTENTIAL AND CAPACITANCE (9 hours)

Electric potential: Definition of electric potential at a point - Definition of potential difference - Derivation of

electric potential due to a point charge - Mention of expression for electric potential due a short electric dipole

at any point - Comparison of the variation of electric potential with distance between a point charge and an

electric dipole - Application of superposition principle to find electric potential due to a system of charges.

Equipotential surfaces: Properties - Derivation of the relation between electric field and potential/Electric

potential energy: Definition of electric potential energy of a system of charges - Derivation of electric potential

energy of a system of two point charges in the absence of external electric field - Mention of expression for

electric potential energy of a system of two point charges in presence of external electric field. Mention of the

expression for the electric potential energy of an electric dipole placed in a uniform electric field. Electrostatics

of conductors - Dielectrics and electric polarisation: Polar and nonpolar dielectrics and their behavior in the

absence and presence of an external electric field.

Capacitors and capacitance - Parallel plate capacitor - Derivation of the capacitance of a capacitor without

LATEST SYLLABUS(Issued by Department of PUE, Karnataka)

BLOW UP SYLLABUS

II PUC PHYSICS - 33

(THEORY)

...Contd.dielectric medium - Mention of expression for capacitance of a capacitor with dielectric medium - Definition

of dielectric constant.

Combination of capacitors: Derivation of effective capacitance of two capacitors (a) in series combination and

(b) in parallel combination, Derivation of energy stored in a capacitor.

Van de Graaff generator: Principle, labeled diagram and use, Numerical Problems.

UNIT-III

CHAPTER 3 : CURRENT ELECTRICITY (15 hours)

Definition of electric current - Electric currents in a conductor - Definition of current density - Ohm’s law:

Statement and explanation - Dependence of electrical resistance on the dimensions of conductor and

mention of Electrical resistivity and conductivity - Derivation of the relation (equivalent R= l/A -

form of Ohm’s law) - Limitations of Ohm’s law.

Drift of electrons and origin of resistivity: Definitions of drift velocity, relaxation time and mobility -

Derivation of expression for conductivity of a material

Color code of carbon resistors; Temperature dependence of resistivity of metals and semiconductors.

Electrical energy and power: Mention of expression for power loss.

Combination of resistors: Derivation of effective resistance of two resistors (a) in series combination and (b) in

parallel combination.

Cells: Definitions of internal resistance of a cell, terminal potential difference and emf of a cell -Derivation of

current drawn by external resistance.

Combination of cells: Derivation of expressions for equivalent emf and equivalent internal resistance (a) in

series and (b) in parallel combination.

Kirchhoff ’s rules: Statements and explanation.

Wheatstone bridge: Derivation of balancing condition – Metre Bridge.

Potentiometer: Principle - Mention of applications (a) to compare emf of two cells and (b) to measure internal

resistance of a cell, Numerical Problems.

UNIT-IV

CHAPTER 4 : MOVING CHARGES AND MAGNETISM (10 hours)

Concept of magnetic field - Oersted’s experiment – Force on a moving charge in uniform magnetic and

electric fields: Lorentz force - Derivation of magnetic force on a current carrying conductor

Motion of a charge in a uniform magnetic field: Nature of trajectories - Derivation of radius and angular

frequency of circular motion of a charge in uniform magnetic field.

Velocity selector: Crossed electric and magnetic fields serve as velocity selector.

Cyclotron: Principle, construction, working and uses.

Biot–Savart law: Statement, explanation and expression in vector form - Derivation of magnetic field on the

axis of a circular current loop - Right hand thumb rule to find direction.

Ampere’s circuital law: Statement and explanation - Application of Ampere’s circuital law to derive the

(vi)

u® ®=h Et

* )s t= 0 /ne m

Ê ® ®æ ö= ´ç ÷è øD I l B

magnetic field due to an infinitely long straight current carrying wire: Solenoid and toroid - Mention of

expressions for the magnetic field at a point inside a solenoid and a toroid.

Derivation of the force between two parallel current carrying conductors - Definition of ampere.

Current loop as a magnetic dipole - Qualitative explanation and definition of magnetic dipole moment -

Mention of expression for torque experienced by a current loop in a magnetic field - Derivation of magnetic

dipole moment of a revolving electron in a hydrogen atom and to obtain the value of Bohr magneton.

Moving coil galvanometer: Mention of expression for angular deflection - Definitions of current sensitivity

and voltage sensitivity - Conversion of galvanometer to ammeter and voltmeter, Numerical Problems.

UNIT-V

CHAPTER 5 : MAGNETISM AND MATTER (8 hours)

Bar magnet: Properties of magnetic field lines - Bar magnet as an equivalent solenoid with derivation - Dipole

in a uniform magnetic field: Mention of expression for time period of oscillation of small compass needle in a

uniform magnetic field -Gauss law in magnetism: Statement and explanation.

Earth’s magnetic field and its elements: Declination, Dip and Earth’s horizontal component B and their H

variation - Definitions of magnetisation (M), magnetic intensity (H), magnetic susceptibility (c) and

permeability .

Magnetic properties of materials: Paramagnetic, diamagnetic and ferromagnetic substances, examples and

properties - Curie’s law and Curie temperature - Hysteresis, Hysteresis loop, definitions of retentivity and

coercivity - Permanent magnets and electromagnets.

CHAPTER 6 : ELECTROMAGNETIC INDUCTION (7 hours)

Experiments of Faraday and Henry - Magnetic flux Faraday’s law of e : lectromagnetic induction

Statement and explanation - Lenz’s law: Statement, explanation and its significance as conservation of

energy.

Motional emf - Derivation of motional emf - Eddy currents -Advantages of eddycurrents with common

practical applications.

Inductance - Mutual inductance: Mention of expression for mutual inductance of two coaxial solenoids –

Mention of expression for induced emf E = −M

Self-inductance: Mention of expression for self-inductance of solenoid - Mention of expression for induced

emf E = − L Derivation of energy stored in the coil.

AC generator: Labeled diagram - Derivation of instantaneous emf in an ac generator, Numerical Problems.

UNIT-VI

CHAPTER 7 : ALTERNATING CURRENT (8 hours)

Mention of expression for instantaneous, peak and rms values of alternating current and voltage.

AC voltage applied to a resistor: Derivation of expression for current, mention of phase relation between

(vii)

...Contd.

* )m m m., rand

h® ®

= ,B B A

dl

dt

dl

dt

voltage and current, phasor representation.

AC voltage applied to an inductor: Derivation of expression for current, mention of phase relation between

voltage and current, phasor representation and mention of expression for inductive reactance.

AC voltage applied to a capacitor: Derivation of expression for current, mention of phase relation between

voltage and current, phasor representation and mention of expression for capacitive reactance.

AC voltage applied to series LCR circuit: Derivation of expression for impedance, current and phase angle

using phasor diagram - Electrical resonance - Derivation of expression for resonant frequency - Mention of

expressions for bandwidth and sharpness (quality factor).

Mention of expression for power in ac circuit - Power factor and qualitative discussion in the case of resistive,

inductive and capacitive circuit-Meaning of wattless current.

LC oscillations: Qualitative explanation - Mention of expressions for frequency of LC oscillations and total

energy of LC circuit.

Transformer: Principle, construction and working - Mention of expression for turns ratio - Sources of energy

losses, Numerical Problems.

CHAPTER 8 : ELECTROMAGNETIC WAVES (2 hours)

Displacement current - Mention the need for displacement current (inconsistency of Ampere’s circuital law) -

Mention of expression for displacement current - Mention of expression for Ampere-Maxwell law.

Electromagnetic waves: Sources and nature of electromagnetic waves – Characteristics - Mention of

expression of speed of light.

Electromagnetic spectrum: Wavelength range and their uses.

UNIT-VII

CHAPTER 9 : RAY OPTICS AND OPTICAL INSTRUMENTS (9 hours)

Reflection of light by spherical mirrors: Sign convention (Cartesian rule) - Focal length of spherical mirrors:

Derivation of the relation f = R/2 in the case of a concave mirror -Mirror equation: Derivation of mirror

equation in the case of concave mirror producing a real image - Definition and expression for linear

magnification.

Refraction of light: Explanation of phenomenon - Laws of refraction - Consequences.

Total internal reflection: Explanation of phenomenon - Mention of conditions - Definition of critical angle -

Mention the relation between n and i - Mention of its applications (mirage, total reflecting prisms and optical c

fibers).

Refraction at spherical surfaces: Derivation of the relation between u, v, n and R.

Refraction by a Lens: Derivation of lens-maker’s formula - Mention of thin lens formula - Definition and

expression for linear magnification.

Power of a lens and mention of expression for it.

Combination of thin lenses in contact – Derivation of equivalent focal length of two thin lenses in contact.

Refraction of light through a prism: Derivation of refractive index of the material of the prism - Dispersion by

(viii)

...Contd.

prism.

Scattering of light: Rayleigh’s scattering law - Blue colour of the sky and reddish appearance of the sun at

sunrise and sunset.

Optical instruments: Eye: Accommodation and least distance of distinct vision - Correction of eye defects

(myopia and hypermetropia) using lenses.

Simple microscope: Ray diagram for image formation - Mention of expression for the magnifying power -

Compound microscope: Ray diagram for image formation - Mention of expressions for the magnifying

power when the final image is at (a) least distance of distinct vision and (b) infinity.

Telescope: Ray diagram for image formation - Mention of expression for the magnifying power and length of

the telescope (L = f + f ) - Schematic ray diagram of reflecting telescopeo e , Numerical Problems.

UNIT-VIII

CHAPTER 10 : WAVE OPTICS (9 hours)

Wave front: plane, spherical and cylindrical – Huygens principle - Refraction of plane wave (rarer to denser),

derivation of Snell’s law - Reflection of a plane wave by a plane surface, derivation of the law of reflection.

Explanation of refraction of a plane wave by (a) a thin prism, (b) by a convex lens and (c) by a concave mirror,

using diagrams.

Coherent sources - Theory of interference, (with equal amplitude) arriving at the conditions for constructive

and destructive interference. Young’s experiment: Brief description - Derivation of fringe width.

Diffraction: Explanation of the phenomenon - Diffraction due to a single slit -Mention of the conditions for

diffraction minima and maxima - Intensity distribution curve.

Resolving power of optical instruments: Mention of expressions for limit of resolution of (a) microscope and

(b) telescope - Methods of increasing resolving power of microscope and telescope.

Polarisation: Explanation of the phenomenon - Plane polarised light - Polaroid and its uses - Pass axis – Malus’

law - Polarisation by reflection: Brewster’s angle - Arriving at Brewster’s law - Statement of Brewster’s law,

Numerical Problems.

UNIT-IX

CHAPTER 11 : DUAL NATURE OF RADIATION AND MATTER (6 hours)

Electron emission: Definition of electron volt (eV) - Types of electron emission.

Photoelectric effect: Mention of Hertz’s observations - Mention of Hallwachs’ and Lenard’s observations -

Explanation of the phenomenon of Photoelectric effect – Definition of work function, threshold frequency

and stopping potential - Experimental setup to study Photoelectric effect: Observations - Mention of effect of

(a) intensity of light on photocurrent, (b) potential on photocurrent and (c) frequency of incident radiation on

stopping potential.

Einstein’s photoelectric equation: Explanation of experimental results.

Particle nature of light: Characteristics of photon.

Wave nature of matter: de-Broglie hypothesis - Mention of de-Broglie relation- Mention of expression for de-

...Contd.

(ix)

Oswaal Karnataka II PUC QuestionBank With Complete Solutions For

Physics For March 2017 Exams

Publisher : Oswaal Books ISBN : 9789386177025 Author : Panel Of Experts

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