Wednesday, February 16, 2022

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 6: Scattering of Light

THE HUMAN EYE AND THE COLOURFUL WORLD

SCATTERING OF LIGHT


The path of a beam of light passing through a true solution is not visible. But it is visible through a colloidal solution due to scattering of light.

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 5: Atmospheric Refraction

THE HUMAN EYE AND THE COLOURFUL WORLD


ATMOSPHERIC REFRACTION


If an object is observed through hot air above a fire or radiator, it shows random wavering or flickering.

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 4: Dispersion of White Light by a Glass Prism

THE HUMAN EYE AND THE COLOURFUL WORLD


DISPERSION OF WHITE LIGHT BY A GLASS PRISM


When sunlight passes through a small hole, it gives a narrow beam of white light.

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 3: Refraction of Light through a Prism

THE HUMAN EYE AND THE COLOURFUL WORLD


REFRACTION OF LIGHT THROUGH A PRISM


A triangular glass prism has two triangular bases and three rectangular lateral surfaces. These surfaces are inclined to each other. The angle between its two lateral faces is called the angle of the prism.

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 2: Defects of Vision and their Correction

THE HUMAN EYE AND THE COLOURFUL WORLD


DEFECTS OF VISION AND THEIR CORRECTION


Defects of vision (refractive defects) are caused due to gradual loss of power of accommodation.

11. The Human Eye and the Colourful World | Class 10 CBSE | Web Notes | Part 1: The Human Eye

THE HUMAN EYE AND THE COLOURFUL WORLD


THE HUMAN EYE


The eyeball is nearly spherical with a diameter of 2.3 cm.

Sunday, February 13, 2022

14. Sources of Energy | Class 10 CBSE | Web Notes | Part 4: Environmental Consequences

SOURCES OF ENERGY


ENVIRONMENTAL CONSEQUENCES


Exploiting sources of energy disturbs the environment.

14. Sources of Energy | Class 10 CBSE | Web Notes | Part 3: Non-Conventional sources of energy

SOURCES OF ENERGY

ALTERNATIVE OR NON-CONVENTIONAL SOURCES OF ENERGY


Solar Energy

14. Sources of Energy | Class 10 CBSE | Web Notes | Part 2: Conventional sources of energy

SOURCES OF ENERGY


CONVENTIONAL (TRADITIONAL) SOURCES OF ENERGY

Fossil Fuels

14. Sources of Energy | Class 10 CBSE | Web Notes | Part 1: Introduction, What is a good source of energy?

SOURCES OF ENERGY

In a physical or chemical process, total energy is conserved.