Light Wave Phenomena Quiz

Diffuse reflection and regular reflection.

Diffuse reflection scatters light in many directions off rough surfaces, while regular reflection produces a uniform direction of light off smooth surfaces.

An incident ray is the ray of light that strikes the surface of a mirror or any reflective surface.

<p>The angle of incidence is the angle between the incident ray and the normal at the point of incidence.</p> Signup and view all the answers

<p>The law of reflection states that the angle of incidence equals the angle of reflection.</p> Signup and view all the answers

<p>An image is the location from which the rays of light appear to be coming after reflecting off a mirror.</p> Signup and view all the answers

<p>Parallax is the apparent shift in an object's position when viewed from different angles.</p> Signup and view all the answers

<p>Object distance is the distance between the object and the mirror, while image distance is the distance between the image and the mirror.</p> Signup and view all the answers

<p>The normal is an imaginary line drawn perpendicularly to the surface at the point of incidence.</p> Signup and view all the answers

<p>The image distance (v) becomes negative.</p> Signup and view all the answers

<p>The convex mirror has a negative focal length.</p> Signup and view all the answers

<p>Magnification is the ratio of the height of the image to the height of the object.</p> Signup and view all the answers

<p>The distance of the image is calculated using the mirror formula: $rac{1}{f} = rac{1}{v} + rac{1}{u}$.</p> Signup and view all the answers

<p>The image formed by a convex mirror is virtual, upright, and reduced in size.</p> Signup and view all the answers

<p>Concave mirrors are used to produce magnified, upright images of teeth.</p> Signup and view all the answers

<p>By focusing the image of a distant object on paper and measuring the distance to the mirror.</p> Signup and view all the answers

<p>Floodlights place their light source at the focal point of a concave mirror to reflect and spread light outward.</p> Signup and view all the answers

<p>Finding an approximate focal length ensures accurate setup and formation of real images during the experiment.</p> Signup and view all the answers

<p>The two locations are 30 cm and 10 cm in front of the mirror.</p> Signup and view all the answers

<p>A real image is formed at the actual intersection of light rays and is always inverted, while a virtual image appears to be formed behind the mirror and is always upright.</p> Signup and view all the answers

<p>Magnification is defined as the ratio of the height of the image to the height of the object; an image is magnified if its height is greater than that of the object.</p> Signup and view all the answers

<p>No parallax indicates that the search pin and the image are at the same location, confirming alignment.</p> Signup and view all the answers

<p>The demonstration proves that the angle of incidence is equal to the angle of reflection, known as the second law of reflection.</p> Signup and view all the answers

<p>The image formed is real, inverted, and diminished, located between the center of curvature (C) and the focus (F).</p> Signup and view all the answers

<p>When an object is placed at the focus of a concave mirror, the image is formed at infinity.</p> Signup and view all the answers

<p>A convex mirror produces a virtual, upright, and diminished image located behind the mirror.</p> Signup and view all the answers

<p>Incident rays traveling parallel to the principal axis are reflected back through the focus of the concave mirror.</p> Signup and view all the answers

<p>An object must be placed between the focus (F) and the mirror to produce an upright and magnified image.</p> Signup and view all the answers

<p>For concave mirrors, focal length (f) is positive and real image distance (v) is also positive; for convex mirrors, f is negative and virtual image distance (v) is negative.</p> Signup and view all the answers

<p>The height of the image is smaller than that of the object.</p> Signup and view all the answers

<p>It can be concluded that the search pin and the image are at the same location.</p> Signup and view all the answers

<p>Light exhibits wave phenomena like reflection and refraction, along with particle-like properties identified as photons.</p> Signup and view all the answers

<p>A convex mirror produces a virtual, upright, and diminished image, while a concave mirror can produce real, inverted images.</p> Signup and view all the answers

<p>They are reflected back through the focal point.</p> Signup and view all the answers

<p>An incident ray is the ray of light that strikes a surface, such as a mirror, from an object or a light source.</p> Signup and view all the answers

<p>The normal is an imaginary line perpendicular to the surface at the point where the incident ray strikes, used to measure angles of incidence and reflection.</p> Signup and view all the answers

<p>A virtual, upright, and magnified image is produced.</p> Signup and view all the answers

<p>During regular reflection, light reflects off smooth surfaces in a single, uniform direction.</p> Signup and view all the answers

<p>At the center of curvature.</p> Signup and view all the answers

<p>Light rays scatter in many directions when they reflect off rough surfaces.</p> Signup and view all the answers

<p>The image is real, inverted, and diminished.</p> Signup and view all the answers

<p>The first law of reflection states that the incident ray, normal, and reflected ray all lie in the same plane.</p> Signup and view all the answers

<p>They are reflected back parallel to the principal axis.</p> Signup and view all the answers

<p>Image distance is the distance from the mirror to the image, while object distance is the distance from the mirror to the object.</p> Signup and view all the answers

<p>The angle of incidence is equal to the angle of reflection.</p> Signup and view all the answers

<p>An image refers to the apparent location from which rays of light seem to come after reflecting from a mirror.</p> Signup and view all the answers

<p>A virtual, laterally inverted image that is the same size as the object.</p> Signup and view all the answers

<p>The angle of reflection is equal to the angle of incidence as per the law of reflection.</p> Signup and view all the answers

<p>Parallax is the apparent shift in position of an object when viewed from different angles or positions.</p> Signup and view all the answers

<p>The image is virtual and upright.</p> Signup and view all the answers

<p>Magnification refers to the ratio of the height of the image to the height of the object.</p> Signup and view all the answers

<p>The image distance is 60 cm.</p> Signup and view all the answers

<p>Concave mirrors produce magnified, upright images of teeth.</p> Signup and view all the answers

<p>The distance from the mirror to the paper is the focal length.</p> Signup and view all the answers

<p>The two locations are 30 cm and 10 cm in front of the mirror.</p> Signup and view all the answers

<p>They converge at the focal point after reflection.</p> Signup and view all the answers

<p>The image is virtual and upright.</p> Signup and view all the answers

<p>It indicates that the focal point is virtual and located behind the mirror.</p> Signup and view all the answers

<p>The light source is placed at the focal point of the concave mirror.</p> Signup and view all the answers

<p>Wave-particle duality means that light exhibits both wave-like properties, such as interference and diffraction, and particle-like properties as photons. This duality allows us to understand light's behavior in a variety of contexts, both in optics and quantum mechanics.</p> Signup and view all the answers

<p>On a smooth surface, light reflects in a uniform direction, known as regular reflection, resulting in clear images. Conversely, on rough surfaces, light reflects in multiple directions, resulting in diffuse reflection, which scatters light and obscures images.</p> Signup and view all the answers

<p>This principle, defined by the law of reflection, implies that the pathway of light is predictable and can be used to design optical devices like mirrors. It ensures that the angle at which light strikes a reflective surface determines the angle at which it leaves that surface.</p> Signup and view all the answers

<p>An object is the source from which light rays originate, while an image is the location from which those rays appear to diverge after reflection. The image's characteristics, such as size and orientation, can differ significantly from those of the object, depending on mirror shape and placement.</p> Signup and view all the answers

<p>The normal line is an imaginary line drawn perpendicular to the surface at the point of incidence, serving as a reference for measuring angles of incidence and reflection. It is vital for applying the law of reflection to analyze how light behaves upon striking a surface.</p> Signup and view all the answers

<p>They are reflected back parallel to the principal axis.</p> Signup and view all the answers

<p>A virtual, upright, and magnified image is produced.</p> Signup and view all the answers

<p>The image formed by a convex mirror is virtual and upright.</p> Signup and view all the answers

<p>A real, inverted, and diminished image is produced.</p> Signup and view all the answers

<p>It indicates that the search pin and the image are at the same location.</p> Signup and view all the answers