Tanvir Ahmed Speaks: October 2023

Tuesday, 31 October 2023

10th Class Chemistry Lecture Unit 9 (PTB Syllabus)

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9th and 10th class English, Biology, Physics, Chemistry, and Computer Science Lectures for Punjab Boards. Class 9th 10th , IX/SSC-1/Matric. These Lectures are per the Latest Syllabus/Course Prescribed by the Boards of Intermediate and Secondary Education (BISEs) of Punjab Province and prescribed by the Department of Education, Punjab Government, Lahore.
In this video,
I covered these things.
Lecture
Unit:9
Chemical Equilibrium,
Introduction,
Reversible Reaction and Dynamic Equilibrium
Macroscopic Characteristics and Dynamic Equilibrium
Law of Mass Action,
Equilibrium Constant and Its Unit,
Importance of Equilibrium Constant
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Monday, 30 October 2023

9th Class Chemistry Lecture Unit 8 (PTB Syllabus)

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9th and 10th class English, Biology, Physics, Chemistry, and Computer Science Lectures for Punjab Boards. Class 9th 10th , IX/SSC-1/Matric. These Lectures are per the Latest Syllabus/Course Prescribed by the Boards of Intermediate and Secondary Education (BISEs) of Punjab Province and prescribed by the Department of Education, Punjab Government, Lahore.
In this video,
I covered these things.
Lecture
Unit:8
Chemical Reactivity,
Introduction,
8.1 METALS,
8.1.1 Electropositive Character,
Inertness of Noble Metals,
8.2 NON-METALS,
8.2.1 Comparison of Reactivity of the Halogens,
8.2.2 Important Reactions of Halogens
1) Oxidizing properties,
2) Reaction with hydrogen,
3) Reaction with water,
8.2.3 Significance of Non-metals,
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Sunday, 29 October 2023

9th Class Chemistry Lecture Unit 7 (PTB Syllabus)

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9th and 10th class English, Biology, Physics, Chemistry, and Computer Science Lectures for Punjab Boards. Class 9th 10th , IX/SSC-1/Matric. These Lectures are per the Latest Syllabus/Course Prescribed by the Boards of Intermediate and Secondary Education (BISEs) of Punjab Province and prescribed by the Department of Education, Punjab Government, Lahore.

In this video,

I covered these things,

Lecture

Unit:7

Electrochemistry,

Introduction,

7.1 OXIDATION AND REDUCTION REACTIONS,

7.1.1 Oxidation and Reduction in Terms of Loss or Gain of Electron,

7.2 OXIDATION STATE AND RULES FOR ASSIGNING OXIDATION

STATE,

7.4 OXIDATION - REDUCTION REACTIONS,

7.5 ELECTROCHEMICAL CELLS,

7.5.3. Galvanic Cell,

7.6 ELECTROCHEMICAL INDUSTRIES,

7.6.2 Manufacture of NaOH from Brine,

7.7 CORROSION AND ITS PREVENTION,

7.7.2 Prevention of Corrosion,

1- Physical Methods (galvanizing and tin coating),

2- Electrolytic method (Electroplating),

A COMPARISON OF EFFECT OF Al O AND Fe O FORMATION ON THEIR PARENT 2 3 2 3 METALS,

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Saturday, 28 October 2023

9th Class Chemistry Lecture Unit:6 (PTB Syllabus)

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Lecture

Unit:6

Solutions,

Introduction,

6.1 SOLUTION,

6.2 SATURATED SOLUTION,

6.3 TYPES OF SOLUTION,

6.4 CONCENTRATION UNITS,

6.5 SOLUBILITY,

6.6 COMPARISON OF SOLUTION, SUSPENSION AND COLLOID,

RELATIONSHIP OF SOLUTIONS TO DIFFERENT PRODUCTS IN

THE COMMUNITY,

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Friday, 27 October 2023

9th Class Chemistry Lecture Unit 5 (PTB Syllabus)

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Lecture

Unit:5

Physical States of Matter,

Introduction,

GASEOUS STATE

5.1 TYPICAL PROPERTIES,

Standard Atmospheric Pressure,

5.2 LAWS RELATED TO GASES,

Experimental Verification of Boyle's law,

Absolute Temperature Scale,

5.2.2 Charles's Law,

Experimental Verification of Charles's Law,

Physical States of Matter and Role of Intermolecular Forces,

5.3 TYPICAL PROPERTIES,

5.3.2 Vapour Pressure,

5.3.3 Boiling Point,

5.3.4 Freezing Point,

5.3.5 Diffusion,

5.3.6 Density,

5.4 TYPICAL PROPERTIES,

5.5 Types of Solids,

5.6 Allotropy,

CHANGE OF INSTRUMENTATION AS THE SCIENCE PROGRESSES,

Thursday, 26 October 2023

9th Class Chemistry Lecture Unit :4 (PTB Syllabus)

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Lecture

Unit:4

Structure of Molecules,

Introduction,

4.1 WHY DO ATOMS FORM CHEMICAL BONDS?,

4.2 CHEMICAL BOND,

4.3 TYPES OF CHEMICAL BOND,

4.3.3 Dative Covalent or Coordinate Covalent Bond,

4.3.4 Polar and Non-polar Covalent Bond,

4.3.5 Metallic Bond,

4.4 INTERMOLECULAR FORCES,

4.5. NATURE OF BONDING AND PROPERTIES,

4.5.2 Covalent Compounds,

4.5.3 Coordinate Covalent Compounds,

AIR CRAFTS, CARS, TRUCKS AND BOATS ARE PARTIALLY HELD TOGETHER WITH

EPOXY ADHESIVES,

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Wednesday, 25 October 2023

9th Class Chemistry Lecture Unit:3 (PTB Syllabus)

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Lecture

Unit:3

Periodic Table and

Periodicity of Properties,

Introduction,

3.1 PERIODIC TABLE,

Long form of Periodic Table,

Salient Features of Long Form of Periodic Table:,

3.1.1 Periods,

3.1.2 Groups,

3.2 PERIODICITY OF PROPERTIES,

3.2.2 Shielding Effect,

3.2.3 Ionization Energy,

3.2.4 Electron Affinity,

3.2.5 Electronegativity,

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Tuesday, 24 October 2023

9th Class Chemistry Lecture Unit:2 (PTB Syllabus)

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Lecture

Unit:12

Structure of Atoms,

Introduction,

2.1 THEORIES AND EXPERIMENTS RELATED TO STRUCTURE OF

ATOM,

Cathode rays and Discovery of Electron,

Discovery of Proton,

Discovery of Neutron,

2.1.1 Rutherford's Atomic Model,

Defects in Rutherford's Model,

2.1.2 Bohr's Atomic Theory,

2.2 ELECTRONIC CONFIGURATION,

2.2.2 The electronic configuration of first 18 elements,

2.3 ISOTOPES,

APPLICATION OF ISOTOPES,

TESTING PREVAILING THEORIES BRINGS ABOUT CHANGE IN

THEM,

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Monday, 23 October 2023

9th Class Chemistry Lecture Unit :1 Part:2 (PTB Syllabus)

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Lecture

Unit:1

Part:2

Fundamental of Chemistry,

1.2.3 Relative Atomic Mass and Atomic Mass Unit,

1.2.4 How to write a Chemical Formula,

1.2.4.1 Empirical formula,

1.2.4.2 Molecular Formula,

1.2.5 Molecular Mass and Formula Mass,

1.3.1 Ions (Cations and Anions), Molecular Ions and Free Radicals,

1.3.1.1 Molecular Ion,

1.3.1.2 Free Radicals,

1.3.2 Types of Molecules,

1.5.2 Mole (Chemist secret unit),

1.6 CHEMICAL CALCULATIONS,

1.6.2 Mole-Particle Calculations,

THE MOLECULARITY OF THE PHYSICAL WORLD.,

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9th Class Chemistry Lecture Unit:1 Part :1 (PTB Syllabus)

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Lecture 9th class Chemistry,

Unit:1

Part:1

Fundamentals of Chemistry,

Introduction,

1.1 BRANCHES OF CHEMISTRY,

1.2 BASIC DEFINITIONS,

1.2.1 Elements, Compounds and Mixtures,

1.2.1.2 Compound,

1.2.1.3 Mixture,

1.2.1 Atomic Number and Mass Number,

Sunday, 22 October 2023

10th Class Physics Lecture Unit:18 (PTB Syllabus)

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Lecture

Unit:18

ATOMIC AND NUCLEAR PHYSICS,

18.1 ATOM AND ATOMIC NUCLEUS,

ISOTOPES,

18.2 NATURAL RADIOACTIVITY,

18.3 BACKGROUND RADIATIONS,

18.4 NUCLEAR TRANSMUTATIONS,

18.5 HALF-LIFE AND ITS MEASUREMENT,

18.6 RADIOISOTOPES AND THEIR USES,

18.7 FISSION REACTION,

18.8 NUCLEAR FUSION,

18.9 HAZARDS OF RADIATIONS AND SAFETY

MEASURES,

SUMMARY,

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Saturday, 21 October 2023

10th Class Physics Lecture Unit :17 Part:2 (PTB Syllabus)

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Lecture

Unit:17

Part:2

Information and Communication Technology,

17.7 INFORMATION STORAGE DEVICES,

17.8 APPLICATIONS OF COMPUTER

WORD PROCESSING,

17.9 INTERNET,

INTERNET SERVICES,

BROWSERS,

Electronic Mail,

17.20 Risks of ICT to Society and the Environment,

SUMMARY,

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10th Class Physics Lecture Unit:17 Part:1 (PTB Syllabus)

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Lecture

Unit:17

Part:1

Information and Communication Technology,

17.1 INFORMATION AND COMMUNICATION

TECHNOLOGY,

17.2 COMPONENTS OF COMPUTER BASED

INFORMATION SYSTEM (CBIS),

17.3 FLOW OF INFORMATION,

17.4 T R A N S M I S S I O N O F E L E C T R I C A L

SIGNAL THROUGH WIRES,

17.5 TRANSMISSIONS OF RADIOWAVES

THROUGH SPACE,

17.6 TRANSMISSION OF LIGHT SIGNALS THROUGH

OPTICAL FIBRES,

10th Class Physics Lecture Unit :16 (PTB Syllabus)

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Lecture

Unit:16

BASIC ELECTRONICS,

16.1 THERMIONIC EMISSION,

16.2 INVESTIGATING THE PROPERTIES OF

ELECTRONS,

16.3 CATHODE-RAY OSCILLOSCOPE (C.R.O),

16.4 ANALOGUE AND DIGITAL ELECTRONICS,

16.5 B A S I C O P E R AT I O N S O F D I G I TA L

ELECTRONICS – LOGIC GATES,

16.6 AND OPERATION,

16.7 OR OPERATION,

16.8 NOT OPERATION,

16.9 NAND GATE,

16.10 NOR GATE,

16.11 USES OF LOGIC GATES,

SUMMARY,

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Friday, 20 October 2023

10th Class Lecture Unit :15 Part: 2 (PTB Syllabus)

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Lecture Unit:15

Part:2

Lecture

ELECTROMAGNETISM,

15.6 Direction of induced e.m.f. – Lenz’s Law,

Current from a generator,

15.8 MUTUAL INDUCTION,

15.9 TRANSFORMER,

Working of a transformer,

15.10 HIGH VOLTAGE TRANSMISSION,

Applications of Electromagnets

SUMMARY,

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10th Class Physics Lecture Unit :15 Part :1 (PTB Syllabus)

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Lecture

Unit:15

Part:1

Electromagnetism,

15.1 MAGNETIC EFFECTS OF A STEADY CURRENT,

Direction of magnetic field,

Magnetic field of a solenoid,

15.2 F O R C E O N A C U R R E N T - C A R R Y I N G

CONDUCTOR PLACED IN A MAGNETIC FIELD,

Determining the direction of force,

15.3 TURNING EFFECT ON A CURRENTCARRYING

COIL IN A MAGNETIC FILED,

15.4 D. C. MOTOR,

15.5 ELECTROMAGNETIC INDUCTION,

Thursday, 19 October 2023

10th Class Physics Lecture Unit :14 Part:2 (PTB Syllabus)

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Lecture

Unit:14

Part:2

Current Electricity,

14.7 CONDUCTORS,

14.8 INSULATORS,

14.9 COMBINATION OF RESISTORS,

14.10 ELECTRICAL ENERGY AND JOULE'S LAW,

14.11 ELECTRIC POWER,

14.12 DIRECT CURRENT AND ALTERNATING

CURRENT,

14.13 HAZARDS OF ELECTRICITY,

14.14 SAFE USE OF ELECTRICITY IN HOMES,

SUMMARY,

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10th Class Physics Lecture Unit:14 Part :1 (PTB Syllabus)

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Lecture

Unit:14

Part:1

Current Electricity,

14.1 ELECTRIC CURRENT,

Conventional Current,

The Measurement of Current,

14.2 POTENTIAL DIFFERENCE,

14.3 ELECTROMOTIVE FORCE (e.m.f),

The Measurement of Potential Difference,

14.4 OHM'S LAW,

14.5 V-I Characteristics of Ohmic and Non Ohmic

Conductors,

14.6 FACTORS AFFECTING RESISTANCE,

Wednesday, 18 October 2023

10th Class Physics Lecture Unit :13 Part : 2 (PTB Syllabus)

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Lecture

Unit:13

Part:2

Electrostatics,

13.7 CAPACITORS AND CAPACITANCE,

13.8 DIFFERENT TYPES OF CAPACITORS,

13.9 APPLICATIONS OF ELECTROSTATICS,

Electrostatic Air Cleaner,

Electrostatic Powder Painting,

13.10 SOME HAZARDS OF STATIC ELECTRICITY,

Lightning,

Fires or Explosions,

SUMMARY,

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10th Class Physics Lecture Unit:13 Part:1 (PTB Syllabus )

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Lecture Unit:13

Part:1

Electrostatics,

13.1 PRODUCTION OF ELECTRIC CHARGES,

13.2 ELECTROSTATIC INDUCTION,

13.3 ELECTROSCOPE,

13. 4 COULOMB'S LAW,

13.5 ELECTRIC FIELD AND ELECTRIC FIELD INTENSITY,

13.6 ELECTROSTATIC POTENTIAL,

Tuesday, 17 October 2023

10th Class Physics Lecture Unit :12 Part:2 (PTB Syllabus)

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Lecture

Unit:12

Part:2

Geometrical Optics,

12.9 IMAGE FORMATION BY LENSES,

12.10 IMAGE LOCATION BY LENS EQUATION,

12.11 APPLICATIONS OF LENSES,

12.12 SIMPLE MICROSCOPE,

12.13 COMPOUND MICROSCOPE,

12.15 THE HUMAN EYE,

SUMMARY,

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10th Class Physics Lecture Unit :12 Part:1 (PTB Syllabus)

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Lecture

Unit:12

Part:1

GEOMETRICAL OPTICS,

12.1 REFLECTION OF LIGHT,

12.2 SPHERICAL MIRRORS,

12.3 IMAGE LOCATION BY SPHERICAL MIRROR

FORMULA,

12.4 REFRACTION OF LIGHT,

12.5 TOTAL INTERNAL REFLECTION,

12.6 APPLICATIONS OF TOTAL INTERNAL REFLECTION,

12.7 REFRACTION THROUGH PRISM,

12.8 LENSES,

10th Class Physics Lecture Unit :10 (PTB Syllabus)

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Lecture

Unit:10

Sound,

11.1 SOUND WAVES,

SOUND IS PRODUCED BY A VIBRATING BODY,

Sound Requires Material Medium for its Propagation,

Longitudinal Nature of Sound Waves,

11.2 CHARACTERISTICS OF SOUND,

11.3 REFLECTION (ECHO) OF SOUND,

11.4 SPEED OF SOUND,

11.5 NOISE POLLUTION,

11.6 IMPORTANCE OF ACOUSTICS,

11.7 AUDIBLE FREQUENCY RANGE,

11.8 ULTRASOUND,

SUMMARY,

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Monday, 16 October 2023

10th Class Physics Lecture Unit:10 (PTB Syllabus)

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9th and 10th grade English, Biology, Physics, Chemistry, and Computer Science Lectures for Punjab Boards. Class 9th 10th , IX/SSC-1/Matric. These Lectures are per the Latest Syllabus/Course Prescribed by the Boards of Intermediate and Secondary Education (BISEs) of Punjab Province and prescribed by the Department of Education, Punjab Government, Lahore.

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Class:10 Physics,

Lecture

Unit:10

SIMPLE HARMONIC

MOTION AND Waves

10.1 SIMPLE HARMONIC MOTION (SHM),

MOTION OF MASS ATTACHED TO A SPRING,

BALL AND BOWL SYSTEM,

MOTION OF A SIMPLE PENDULUM,

10.2 DAMPED OSCILLATIONS,

10.3 WAVE MOTION,

10.4 TYPES OF MECHANICAL WAVES,

WAVES AS CARRIERS OF ENERGY,

RELATION BETWEEN VELOCITY, FREQUENCY AND

WAVELENGTH,

10.5 RIPPLE TANK,

SUMMARY,

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