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This document discusses the characteristics and properties of plane mirrors and concave mirrors. It defines a plane mirror as a transparent object that reflects light off its flat surface. It then discusses the formation of virtual and upright images in plane mirrors. The document goes on to define a concave mirror as having a spherical reflecting surface on the inside. It identifies the focal point and focal length of a concave mirror. The document explains the behavior of light rays reflecting off a concave mirror and where they converge or become parallel. It finishes by describing the type of images (real or virtual, upright or inverted) formed by a concave mirror depending on the location of the object (inside, between, or beyond the focal point and center of curvature
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This document discusses mirrors and the types of images they form. It describes plane mirrors, which form virtual upright images of the same size as the object. It also describes spherical mirrors, including concave mirrors that form real images and convex mirrors that form virtual upright images. The document explains the key parts of spherical mirrors, including the center of curvature, vertex, focal point, and radius of curvature. It presents the mirror equation to calculate image distances and magnification.Spherical mirror
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This document describes the properties and behavior of concave mirrors. It defines a concave mirror as a spherical mirror where light reflects off the concave surface. It outlines the key parts of a concave mirror including the center of curvature, radius of curvature, pole, principal axis, and principal focus. The document then explains three rules for how light rays behave when interacting with a concave mirror, depending on whether they pass through the focus, center of curvature, or are parallel to the principal axis. It proceeds to describe the different types of images formed by a concave mirror when the object is placed at various positions in relation to the focus and center of curvature, such as between the pole and focus, at the focus, orCurved mirrors
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This document discusses curved mirrors and their properties. It notes that curved mirrors have surfaces shaped like parts of spheres and defines convex and concave mirrors. Convex mirrors bulge outward and produce virtual images, while concave mirrors bulge inward and can produce real or virtual images depending on the object position. Examples of uses of each type of mirror are provided, such as passenger side car mirrors using convex mirrors and telescopes and makeup mirrors using concave mirrors. The key differences in image formation between convex and concave mirrors are also summarized.Reflection from a spherical mirror
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Light is a fundamental phenomenon in our universe, essential for life on Earth and central to how we perceive the world. Here's a comprehensive description:
What is Light?
At its core, light is electromagnetic radiation that can be perceived by the human eye. This "visible light" is just a tiny portion of the vast electromagnetic spectrum, which includes a wide range of radiation like radio waves, microwaves, infrared, ultraviolet, X-rays, and gamma rays. All these forms of electromagnetic radiation travel at the speed of light in a vacuum, which is approximately 299,792,458 meters per second (186,282 miles per second).
The Dual Nature of Light (Wave-Particle Duality)
One of the most fascinating aspects of light is its dual nature, meaning it exhibits characteristics of both waves and particles.
* Wave Nature: In many situations, light behaves like a transverse wave, with oscillating electric and magnetic fields perpendicular to each other and to the direction of propagation. This wave nature explains phenomena like:
* Reflection: Light bouncing off a surface.
* Refraction: Light bending as it passes from one medium to another (e.g., from air to water) due to a change in speed.
* Diffraction: Light bending around obstacles or spreading out after passing through small openings.
* Interference: The superposition of two or more light waves, leading to patterns of constructive (brighter) or destructive (darker) interference.
* Dispersion: The splitting of white light into its constituent colors (e.g., by a prism), because different wavelengths (colors) bend at slightly different angles.
* Polarization: The restriction of light wave vibrations to a single plane.
* Particle Nature: In other situations, particularly when interacting with matter, light behaves as if it's composed of discrete packets of energy called photons. Photons are massless particles that carry a fixed amount of energy. This particle nature helps explain phenomena like:
* Photoelectric Effect: The emission of electrons from a material when light shines on it, where the energy of the emitted electrons depends on the frequency (not intensity) of the light.
* The idea that light travels in discrete quanta was a foundational concept for quantum theory.
Key Characteristics and Properties of Light:
* Speed: Light travels at a finite, incredibly high speed, which is a fundamental constant of the universe. Its speed changes when it passes through different mediums.
* Wavelength and Frequency: Like all waves, light has a wavelength (the distance between two consecutive crests or troughs) and a frequency (the number of waves passing a point per second). These are inversely related: shorter wavelengths correspond to higher frequencies and higher energy, and vice-versa.
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The document reviews the properties and terminology of concave and convex spherical mirrors, including definitions of key terms such as vertex, center of curvature, and focal length. It explains the differences between concave and convex mirrors, their reflective properties, and how to draw ray diagrams for image formation. Additionally, the document outlines the process for determining the location, orientation, size, and type of images created by these mirrors.Ad
Cahaya Datar,Cekung
- 1. Reflection PLAN MIRROR 1 PLAN MIRROR 2
- 2. PLAN MIRROR Defining Its parts Shaping of image Exercise
- 3. PLAN MIRROR Is transparency object which get to reflect of light and has plane surface.
- 4. dark shine
- 5. Plan mirror Image
- 6. object image
- 7. THE IMAGE CHARACTERISTIC OF PLANE MIRROR Virtual Standing The distance of object = The distance of image Symmetries The image place
- 8. CONCAVE MIRROR The lesson aim Defining Its parts Special rays Shaping of image Exercise
- 9. 油
- 10. The concave mirror is the inside of the spherical surface is the reflecting surface. The characteristic of concave mirror to collect of rays or CONVERGEN The cut point of focusing reflected rays mentioned FOCUS LENGTH DEFINING OF CONCAVE MIRROR
- 11. The parts of concave mirror F C V C = center of mirror curve or radius of curvature F =the mirror focal point or focal length V = the mirror vertex FV = the distance of mirror focal length CV= the mirror radius
- 12. The principle rays of concave mirror A ray parallel to the mirror axis is reflected passes through the focal point of a concave mirror A ray that passes through the focal point of concave mirror is reflected parallel to the mirror axis . 3. A ray that proceeds along a radius of the mirror is reflected back along its original path.
- 13. F V 1. A ray parallel to the mirror axis reflected passes through the focal point of a concave mirror
- 14. F V 2. A ray that passes through the focal point of concave mirror is reflected parallel to the mirror axis
- 15. F V 3. A ray that proceeds along a radius of the mirror is reflected back along its original path
- 16. Images formed for the following object distance : Inside F ( first room) Between C and the focal length ( second room) Beyond the center of curvature C (third room) At Focal (F) At the radius of curvature (C).
- 17. TERUS ULANG F C Images formed at C The nature real, inverted, the same size at the radius of curvature C
- 18. F C Images formed at inside F ( first room) The nature virtual, erect, enlarger at IV room
- 19. F V Images formed between C and the focal length F( second room) The nature real, inverted, enlarger at III room
- 20. F C Images formed beyond the center of curvature (third room) The nature real, inverted, diminished at II room
- 21. F C Images formed at F No image will be formed ( the image distance is infinite)
- 22. . Hueebaaat ..... yaa anda benar LANJUT