English

Transmission of Light From a Denser Medium to a Rarer Medium

Topics

Force, Work, Power and Energy
Force
Light
Work, Energy and Power
Sound
Machines
- Concept of Machines
- Technical Terms Related to a Machine
- Principle of a Machine
- Efficiency, Mechanical Advantage, and Velocity Ratio
- Levers
- Types of Levers
- Pulley
- Single Fixed Pulley
- A Single Movable Pulley
- Single Pulley vs Single Movable Pulley
- Combination of Pulleys
- Using one fixed pulley and other movable pulleys
- Using several pulleys in two blocks (block and tackle system)
Electricity and Magnetism
Refraction of Light at Plane Surfaces
- Light: Reflection and Refraction
- Refraction of Light
- Laws of Refraction
- Speed of Light in Different Media
- Principle of Reversibility of the Path of Light
- Refraction Laws & Glass Index
- Refraction of Light Through a Rectangular Glass Block
- Multiple Images in a Thick Mirror
- Prism
- Refraction of Light Through a Prism
- Real and Apparent Depth
- Apparent Bending of a Stick Under Water
- Consequences of Refraction of Light
- Transmission of Light From a Denser Medium to a Rarer Medium
- Critical Angle
- Relationship between Critical Angle and Refractive Index
- Total Internal Reflection
- Total Internal Reflection in a Prism
- Total Internal Reflection Through a Right-Angled Isosceles Prism
- Total Internal Reflection Through an Equilateral Prism
- Total Internal Reflection Through Right-angled prism
- Use of a Total Internal Reflecting Prism in Place of a Plane Mirror
- Total Internal Reflection vs Reflecting from a Plane Mirror
- Consequences of Total Internal Refraction
Heat
Refraction Through a Lens
- Concept of Lenses
- Action of a Lens as a Set of Prisms
- Technical Terms Related to a Lens
- Convex Lens vs Concave Lens
- Refraction of Light Through an Equi-Convex Lens and an Equi-Concave Lens
- Principal Rays for Ray Diagrams
- Real Image vs Virtual Image
- Construction of a Ray Diagram for a Lens
- Images Formed by Convex Lenses
- Images Formed by Concave Lenses
- Sign Convention
- Lens Formula
- Linear Magnification
- Power of a Lens
- Magnifying Glass Or Simple Microscope
- Application of Lenses
- Experimental Determination of Focal Length of Convex Lens
- Convex Lens vs Concave Lens
Modern Physics
Spectrum
- Deviation Produced by a Triangular Prism
- Colour in White Light with Their Wavelength and Frequency Range
- Dispersion of Light
- Electromagnetic Spectrum
- Properties and Uses of Different Radiations of the Electromagnetic Spectrum
- Distinction between Ultraviolet, Visible, and Infrared Radiations
- Scattering of Light
- Applications of Scattering of Light
Sound
- Sound Waves
- Light Waves vs Sound Waves
- Reflection of Sound Waves
- Echo
- Determination of Speed of Sound by the Method of Echo
- Use of Echoes
- Natural Vibrations
- Damped Vibrations
- Natural Vibrations vs Damped Vibrations
- Forced Vibrations
- Natural Vibrations vs Forced Vibrations
- Resonance (a special case of forced vibrations)
- Demonstration of Resonance
- Forced Vibrations vs Resonant Vibrations
- Examples of Resonance
- Characteristics of Sound
- Loudness and Intensity
- Pitch and frequency
- Quality and Wave Form
- Music and Noise
Current Electricity
Household Circuits
- Transmission of Power from the Power Generating Station to the Consumer
- Power Distribution to a House
- House Wiring (Ring System)
- Fuse
- Reason for connecting the fuse in the live wire
- Current Rating of a Fuse
- Switches
- Circuits with Dual Control Switches (Staircase Wire)
- Earthing
- Three-pin Plug and Socket
- Colour Coding of Wires in a Cable
- High Tension Wires
- Precautions to Be Taken While Using Electricity
Electro-Magnetism
- Oersted's Experiment
- Applications of Biot-Savart's Law > Magnetic Field due to a Finite Straight Current-Carrying Wire
- Right-hand Thumb Rule
- Applications of Biot-Savart's Law > Magnetic Field at the Centre of a Circular Loop
- Applications of Ampere’s Circuital Law > Magnetic Field of a Long Straight Solenoid
- Electromagnet
- Permanent Magnet
- Comparison of an Electro Magnet with a Permanent Magnet
- Advantages of an Electromagnet over a Permanent Magnet
- Uses of Electromagnet
- Force on a Current Carrying Conductor in a Magnetic Field
- Simple D.C. Motor
- Electromagnetic Induction
- Demonstration of the Phenomenon of Electromagnetic Induction
- Faraday's Explanation
- Faraday's Laws of Electromagnetic Induction
- A.C. Generator
- Frequency of an a.c. in Household Supplies
- Comparison Between A.C. Generator and D.C. Motor
- Transformers
Calorimetry
- Heat
- The Temperature and a Thermometer
- Factors Affecting the Quantity of Heat Absorbed to Increase the Temperature of a Body
- Heat vs Temperature
- Thermal or Heat Capacity
- Specific Heat Capacity
- Heat Capacity vs Specific Heat Capacity
- Specific Heat Capacity of Some Common Substances
- Calorimetry
- Principle of Method of Mixtures or Principle of Calorimetry
- Natural Phenomena and Consequences of High Specific Heat Capacity of Water
- Examples of High and Low Heat Capacity
- Change of State
- Melting and Freezing
- Melting Point and Its Effects
- Vaporisation or Boiling
- Boiling Point and Its Effects
- Latent Heat
- Specific Latent Heat of Fusion of Ice
- Explanation of Latent Heat of Melting based on Kinetic Model
- Natural Consequences of High Specific Latent Heat of Fusion of Ice
Radioactivity
- Structure of the Atom and Nucleus
- Atomic Model
- Isotopes
- Isobars
- Isotones
- Radioactivity
- Radioactivity as emission of Alpha, Beta, and Gamma Radiations
- Properties of Alpha Particles
- Properties of Beta Particles
- Properties of Gamma Radiations
- Distinction between the Properties of α, β, and γ Radiations
- Changes Within the Nucleus in Alpha, Beta and Gamma Emission
- Uses of Radioactive Isotopes
- Sources of Harmful Radiations
- Harmful Effects of Radiation
- Safety Precautions While Using Nuclear Energy
- Background Radiations
- Forms of Energy > Nuclear Energy
- Nuclear Fission
- Radioactive Decay Vs Nuclear Fission
- Nuclear Fusion
- Nuclear Fission Vs Nuclear Fusion

Key Points: Transmission of Light From a Denser Medium to a Rarer Medium

CISCE: Class 10

Key Points: Transmission of Light From a Denser Medium to a Rarer Medium

When i < C, the ray is partly reflected and partly refracted, and r > i.
When i = C (critical angle), the angle of refraction = 90°, and the ray travels along the interface.
When i > C, no refraction occurs; the ray is totally reflected back into the denser medium.
This complete reflection at i > C is called total internal reflection.

Related QuestionsVIEW ALL [7]

A tank of water is viewed normally from above.

State how does the depth of tank appear to change.
Draw a labelled ray diagram to explain your answer.

After a robbery, if a window has been broken, there will be tiny particles of glass. Some of these will be found at the scene of the crime and some may be caught in the thief’s clothing. If the police can prove that these particles are identical, they have a strong case.
A method of doing this is to suspend the particles of glass in a special liquid. Light of a single colour is thrown through the liquid and the particles viewed through a microscope. The temperature of the liquid is then slowly altered. This alters the speed of light through the liquid (i.e., it alters the refractive index). At one particular temperature, the particles of glass disappear. It this happens at the same temperature for both sets of glass particles, they probably came from the same broken pane of glass.
Complete and copy the diagram to show how light bends when it travels from the liquid to the glass and back to the liquid, If the light speeds up in the glass.

An object in a denser medium when viewed from a rarer medium appears to be raised. The shift is maximum for ______.

A ray of monochromatic light enters a liquid from the air as shown in the diagram given below:

Mark in your diagram the two angles on the surface of separation when the ray of light moves out from the liquid to air.

If the angle of incidence is greater than the critical angle, light is not refracted at all, when it falls on the surface from a denser medium to a rarer medium.

What do you mean by the statement that the refractive index of diamond is 2.42?

A ray of monochromatic light enters a liquid from the air as shown in the diagram given below:

Copy the diagram and show in the diagram the path of the ray of light after it strikes the mirror and re-enters the medium of air.