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Class 12 Physics in Hindi - NCERT Revision

Class 12 Physics in Hindi - NCERT Revision

Written by: PadhaiPaglu
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Chapter-by-chapter NCERT revision for Class 12 Physics, explained in Hindi. One short episode per chapter with a quick quiz and a one-minute recap. Free notes and practice: https://padhaipaglu.com The narration is AI-generated (a synthetic voice, not a real person's). Chapter content follows the NCERT syllabus.
Episodes
  • Ch 8 Electromagnetic Waves | Class 12 Physics in Hindi

    Ch 8 Electromagnetic Waves | Class 12 Physics in Hindi
    Oct 19 2026
    Electromagnetic Waves, Class 12 Physics NCERT Chapter 8: quick revision in Hindi, about 15 minutes, with quick quizzes and a one-minute recap. Free NCERT notes, flashcards and practice: https://padhaipaglu.com In this episode: - Maxwell's idea and displacement current - Ampere-Maxwell law - What electromagnetic waves are and why no medium is needed - How accelerating charges produce EM waves - Relation between E and B fields (E0 = cB0) - Energy, momentum and radiation pressure - The electromagnetic spectrum, radio waves to gamma rays Timestamps: 0:00 Introduction 0:19 Roadmap 0:46 Maxwell's idea: changing E field makes B field 1:41 Displacement current and Ampere-Maxwell law 2:51 Displacement current is not a real charge flow 3:08 Quick quiz 1 3:35 What is an electromagnetic wave 4:25 EM waves need no medium, and what creates them 4:48 Source of EM waves: accelerating charges 5:33 Quick quiz 2 6:03 E and B fields: perpendicular, amplitude relation 7:30 E, B and propagation direction are mutually perpendicular 7:50 Energy, momentum and radiation pressure 8:44 The electromagnetic spectrum overview 9:34 Radio waves and microwaves 10:14 Infrared and visible light 11:04 Ultraviolet, X-rays and gamma rays 12:07 Common mistakes about the EM spectrum 12:54 Quick quiz 3 13:29 One-minute recap The narration is AI-generated (a synthetic voice, not a real person's). Chapter content follows the NCERT syllabus.
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    15 mins
  • Alternating Current

    Alternating Current
    Oct 18 2026
    Alternating Current, Class 12 Physics NCERT: quick revision in Hindi, about 13 minutes, with quick quizzes and a one-minute recap. Free NCERT notes, flashcards and practice: https://padhaipaglu.com In this episode: - What AC is and why it is used - Resistor in AC circuits and rms values - Phasors as rotating vectors - Inductor in AC: reactance and phase lag - Capacitor in AC: reactance and phase lead - Series LCR circuit and impedance - Resonance and resonant frequency - AC power, power factor, and transformers Timestamps: 0:00 Introduction 0:17 Roadmap 0:46 What is AC and why we use it 1:29 AC through a resistor and rms values 2:45 Quick quiz 1 3:16 Phasors explained 3:46 AC through an inductor 4:43 AC through a capacitor 5:26 Common mistakes: reactance and phasors 5:58 Quick quiz 2 6:32 Series LCR circuit and impedance 7:45 Resonance in LCR circuit 8:39 Common mistakes: LCR and resonance 9:04 AC power and power factor 10:10 Quick quiz 3 10:41 Transformer working and turns ratio 11:44 One-minute recap The narration is AI-generated (a synthetic voice, not a real person's). Chapter content follows the NCERT syllabus.
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    13 mins
  • Ch 9 Ray Optics and Optical Instruments | Class 12 Physics in Hindi

    Ch 9 Ray Optics and Optical Instruments | Class 12 Physics in Hindi
    Oct 20 2026
    Ray Optics and Optical Instruments, Class 12 Physics NCERT Chapter 9: quick revision in Hindi, about 15 minutes, with quick quizzes and a one-minute recap. Free NCERT notes, flashcards and practice: https://padhaipaglu.com In this episode: - Ray of light and ray optics approximation - Spherical mirrors, sign convention and mirror equation - Refraction and Snell's Law - Total internal reflection, critical angle and optical fibres - Refraction at a spherical surface and lens maker's formula - Power of a lens and combination of lenses - Refraction through a prism and angle of deviation - Compound microscope and astronomical telescope Timestamps: 0:00 Introduction 0:17 Roadmap 0:45 What is a ray of light 1:14 Spherical mirrors and sign convention 2:05 Focal length and mirror equation 3:12 Common mistakes with mirrors 3:37 Refraction and Snell's Law 4:33 Total internal reflection and critical angle 5:43 Prisms and optical fibres 6:16 Quick quiz 1 6:42 Refraction at curved surfaces and lenses 8:20 Power of a lens 8:58 Quick quiz 2 9:25 Combination of lenses 10:04 Refraction through a prism 11:02 Compound microscope 11:57 Astronomical telescope 12:38 Quick quiz 3 13:06 One-minute recap The narration is AI-generated (a synthetic voice, not a real person's). Chapter content follows the NCERT syllabus.
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    15 mins
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