In this case, the right side of the object becomes left side of the image and the left side of the object becomes the right side of the image the home - you see a 'perfect' image of yourself, but it is laterally
The ray bounced back and moving away from the reflecting surface is called the reflected ray. If the value of n is even then the number of the image is (n -1) (it is true for both symmetrical and unsymmetrical position of the object). looking through a glass window pane.
uses of sound, ultrasound, infrasound, earthquake waves, The Structure of the Earth, crust, mantle, core and earthquake waves (seismic wave
coincident with the thin rays of light for the incident ray and reflected ray.
The incident ray, the normal at the point, and the reflected ray, all lie on the same plane. (give out their own light), we see objects by reflected light.
refracted). respect to the line of the surface of the material. It is used to observe things when there is a
quizzes, worksheets etc. construct the diagram of the virtual image formed in a plane mirror. the mirror as the object is in front of the mirror. The object O will give image I1 in mirror M1 and image I2 in mirror M2. AO is normal to the reflecting surface XY. The normal is an imaginary line where the light ray hits the
explaining the colour of objects, Astronomy - solar system, stars, galaxies and
reducing our carbon footprint from fossil fuel burning, The visible spectrum of colour, light filters and
absorbed by the surface. The ray diagram for the formation of a mirror image. XY is a reflecting surface and A is a point source of light(object) emitting light in all the directions. Copying of website material is NOT
surface they are 'bounced' off symmetrically at the same angle with respect to
the same way up as the object (if not it would be inverted, and you would
You repeat the experiment and changing the angle of
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ray turns through angle 2θ. The scientific wave model of reflection of light rays.
smooth flat surfaces e.g. It is also known as perversion. opaque materials, angle of reflection i always
the bulb (filament or LED) is collected by the mirror and reflected to produce
The change in direction of incident ray = (180° – 2i) – clear reflection with little if any of the light absorbed. light from the surfaces of the objects we are viewing. transmission of light, The scientific wave model of reflection of light rays, Other points about reflection including scattering surfaces, Refraction and diffraction, the visible light
Light waves are readily reflected off
2i + 2θ = 2θ, Thus if the mirror itself is rotated by θ, then reflected Very few surfaces do not reflect light. reflection ray diagrams uses of mirrors for OCR GCSE 9-1 21st century
A reflecting telescope uses a concave mirror. reflection rule (angle i = angle r) applies whatever the shape of the mirror! As we observe our image on a plane mirror, we can see that our left side is at the right side of the image and our right side is at the left side of the image. An opaque material does not
Draw a 'normal' at 90o (perpendicular) to this line. The image of a point in a plane mirror lies behind the mirror along the normal produced from the object and is as far behind the mirror as the object is in front. reflection from paper, unpolished clay pot. (flat) and curved mirrors, The characteristic properties of the image
system. Phil Brown 2000+. You can make small changes to the parabolic
The angle of incidence is equal to the angle of reflection, The incident ray and the reflected ray lie on either side of the normal at the point of incidence. Hence A’B’ is the image of the object AB. Convex mirrors give you a wide field of
two materials, some of the wave energy might be reflected, absorbed or
The image produced in a plane
When light waves meet the boundary between
angles so you cannot see a clear reflected image. the 'left' of the object now appears on the 'right' side and the 'right' of
Thus there is a deviation of the ray is (180° – 2i). wave calculations, Illuminated & self-luminous objects, reflection visible light,
Some of the light might also be
Visible light is part of the electromagnetic
adjacent to this line at 90o to the normal. The objects having a shiny or polished surface reflects more light compared to the objects having a dull or unpolished surface. explaining the colour of objects gcse physics revision notes, Sound waves, properties explained, speed measure,
acts as a mirror - another case of total internal reflection, this time in fine
e.g. reflected ray with respect to the normal with a protractor (NOT with respect to
'normal', it isn't a ray, but helps in the construction and interpretation of
A plane mirror means one with a perfectly flat surface.
(flat) and curved mirrors, Doc Brown's Physics Revision
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