Search results
pinterest.com
- Light is the form of energy that enables us to see. Properties of Light • Electromagnetic wave, so does not require any medium to travel. • Light tends to travel in straight line. • Light has dual nature i.e., wave as well as particle. • Light casts shadow. • Speed of light is maximum in vacuum. Its value is 3 × 10^8 m/s.
Following are the important properties of light –. Light travels in a straight line. The speed of light is faster than sound. Light travels at a speed of 3 x 10 8 m/s. Reflection of light.
- Rectilinear Propogation of Light
There is one thing not many people know about Science: It’s...
- Reflection and Refraction Notes
Characteristics of Light. The speed of light is given as...
- Rectilinear Propogation of Light
Jan 22, 2024 · Reflected light: Light which goes back after reflection is called reflected light. The angle of incidence: The angle between the incident ray and the normal. An angle of reflection: The angle between the reflected ray and the normal. Mirror: The surface which can reflect the light is a mirror.
- Introduction to Light – Reflection & Refraction
- Chapter Summary Video
- Laws of Reflection
- Spherical Mirrors
In Class 10 Science Chapter 10 Light, the phenomena of reflection and refraction of light using the straight-line propagation of light are taught to students. Furthermore, optical phenomena in nature are examined. The reflection of light by spherical mirrors is discussed in the chapter so that their applications are studied in real-life situations.
Light: Definition
Light is a form of energy that enables us to see things. Light starts from a source and bounces off objects which are perceived by our eyes, and our brain processes this signal, which eventually enables us to see. Maxwell predicted that magnetic and electric fields travel in the form of waves, and these waves move at the speed of light. This led Maxwell to predict that light itself was carried by electromagnetic waves, which means that light is a form of electromagnetic radiation.
Nature of Light
Light behaves as a: 1. ray, e.g. reflection 2. wave, e.g. interference and diffraction 3. particle, e.g. photoelectric effect According to the concept of wave-particle duality in quantum mechanics, light exhibits both particle and wave nature, depending upon the circumstances. A phenomenon like diffraction, polarisation and interference could be explained by considering light as a wave. A phenomenon like the photoelectric effect is explained by assuming that light consists of particles called...
Light Incident on the Surface Separating Two Media
When light travels from one medium to another medium it either: 1. gets absorbed (absorption) 2. bounces back (reflection) 3. passes through or bends (refraction) When light is incident on a plane mirror, most of it gets reflected, and some of it gets absorbed in the medium.
Characteristics of Light
1. The speed of light is given as c=λμ, where λ is its wavelength and μ is its frequency. 2. The speed of light is a constant which is 2.998×108m/s or approximately 3.0×108m/s. To know more about Properties of Light, visit here.
Reflection of Light by Other Media
A medium that is polished well without any irregularities on its surface will cause regular reflection of light. For example, a plane mirror. But even then, some light gets absorbed by the surface.
Spherical Mirror
Consider a hollow sphere with a very smooth and polished inside surface and an outer surface with a coating of mercury so that no light can come out. Then if we cut a thin slice out of the shell, we get a curved mirror, which is called a spherical mirror.
Relationship between Focus and Radius of Curvature
Focal length is half the distance between the pole and the radius of curvature.
Curved Mirror
A mirror (or any polished, reflective surface) with a curvature is known as a curved mirror.
- 49 min
the new theory reconciles the particle properties of light with the wave nature. In this Chapter, we shall study the phenomena of reflection and refraction of light using the straight-line propagation of light.
Aug 9, 2017 · Properties of Light → Electromagnetic wave, so does not require any medium to travel. → Light tends to travel in straight line. → Light has dual nature i.e. wave as well as particle. → Light casts shadow. → Speed of light is maximum in vaccum. Its value is 3 × 10 8 ms-1. → When light falls on a surface, following may happen: (i ...
Aug 4, 2018 · Properties of Light. • Electromagnetic wave, so does not require any medium to travel. • Light tends to travel in straight line. • Light has dual nature i.e., wave as well as particle. • Light casts shadow. • Speed of light is maximum in vacuum. Its value is 3 × 10^8 m/s. • When light falls on a surface, following may happen : (a) Reflection.
Dec 12, 2023 · Light is an electromagnetic wave that can be visible to humans and help humans to see the object. We can also define Light as a form of energy that helps us to see. Light Wave contains a minute packet of energy particles called photons.
