10: Light – Reflection and Refraction
This lesson covers the phenomena of reflection and refraction of light, including laws of reflection and refraction, mirror and lens formulas.
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Introduction to Light and Reflection: English -
Spherical Mirrors: Concave and Convex: English
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Ray Diagrams for Spherical Mirrors: English
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Mirror Formula and Magnification: Hindi
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Refraction of Light and Snell's Law: Hindi
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Spherical Lenses: Concave and Convex: Hindi
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Ray Tracing for Concave Mirrors
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Not startedSolving Lens Formula Problems
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Not started11: Human Eye and Colourful World
This lesson explores the structure and functioning of the human eye, common vision defects, and phenomena like dispersion of light and scattering.
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The Human Eye: Structure and Functioning: English
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Defects of Vision and their Correction (Myopia, Hypermetropia): English
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Dispersion of White Light through a Prism: Hindi
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Atmospheric Refraction: Twinkling of Stars, Advance Sunrise and Delayed Sunset: Hindi
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Identifying Eye Defects
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Not startedExplaining Atmospheric Phenomena
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Not started12: Electricity
This lesson introduces concepts of electric current, potential difference, Ohm's Law, resistance, and the heating effects of electric current.
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Electric Current and Circuit: English
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Electric Potential and Potential Difference: English
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Ohm's Law and Resistance: Hindi
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Factors on which the Resistance of a Conductor Depends: Hindi
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Applying Ohm's Law
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Not startedCalculating Equivalent Resistance
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Not started13: Magnetic Effects of Electric Current
This lesson explores the magnetic effects of electric current, magnetic fields, forces on current-carrying conductors, and electromagnetic induction.
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Magnetic Field and Field Lines: English
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Magnetic Field due to a Current-Carrying Conductor: English
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Force on a Current-Carrying Conductor in a Magnetic Field (Fleming's Left-Hand Rule): Hindi
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Electric Motor: Hindi
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Identifying Magnetic Field Directions
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Not startedWorking of Electric Motor and Generator
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Not started14: Sources of Energy
This lesson discusses various conventional and non-conventional sources of energy, their advantages, and limitations.
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Good Sources of Energy: English
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Conventional Sources of Energy: Fossil Fuels, Thermal Power Plant, Hydro Power Plants: English
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Non-Conventional Sources of Energy: Solar Energy, Bio-mass Energy, Wind Energy: Hindi
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Ocean Thermal Energy, Geothermal Energy, Nuclear Energy: Hindi
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Comparing Renewable and Non-renewable Sources
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Not startedAdvantages and Disadvantages of Solar Energy
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