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The phenomenon in which the right side of an object appears to be at the left in its image, and vice versa, is called _ _ _ _ _ _ _ _ _ _ _ _ _ _.A mirror is a smooth and highly _ _ _ _ _ _ _ _ _ _ _ _ _ _ surface which reflects most of the light falling on it.The process of determining the colour of an object when a light of a single colour or a mixture of colours is thrown on it is known as _ _ _ _ _ _ _ _ _ _ _ _ _ _.The speed of light in a vacuum or air is approximately _ _ _ _ _ _ _ _ _ _ _ _ _ _.The bouncing back of light into the same medium after striking a surface is known as _ _ _ _ _ _ _ _ _ _ _ _ _ _.A _ _ _ _ _ _ _ _ _ _ _ _ _ _ is a long, vertical tube containing a set of mirrors used in submarines to observe objects above the surface of water.The point on the reflecting surface at which the incident ray strikes it is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.A white object appears white because it reflects all the colours of white light and absorbs _ _ _ _ _ _ _ _ _ _ _ _ _ _ colour.A _ _ _ _ _ _ _ _ _ _ _ _ _ _ object lets most of the light pass through it and reflects very little light.The speed of light in glass is _ _ _ _ _ _ _ _ _ _ _ _ _ _.The ray of light which strikes the reflecting surface is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.According to the second law of reflection, the angle of incidence and the angle of reflection are always _ _ _ _ _ _ _ _ _ _ _ _ _ _.Regular reflection from a smooth and polished surface like a mirror is also known as _ _ _ _ _ _ _ _ _ _ _ _ _ _ reflection.A translucent object, such as butter paper, lets some light pass through it and _ _ _ _ _ _ _ _ _ _ _ _ _ _ some of the light falling on its surface.When two plane mirrors are kept on opposite walls of a room, they make the room look _ _ _ _ _ _ _ _ _ _ _ _ _ _.A perpendicular line drawn to the reflecting surface at the point of incidence is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.The colours produced by mixing any two primary colours are called _ _ _ _ _ _ _ _ _ _ _ _ _ _ colours.The distance of an object from a plane mirror is always _ _ _ _ _ _ _ _ _ _ _ _ _ _ to the distance of its image from the mirror.Sir David Brewster was a 19th-century British scientist who invented the _ _ _ _ _ _ _ _ _ _ _ _ _ _ in 1816.The ray of light which is reflected back into the same medium after striking a surface is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.The ratio by which the speed of light is slowed down in transparent materials is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _ of the medium.Mixing red and green lights produces the secondary colour _ _ _ _ _ _ _ _ _ _ _ _ _ _.An opaque object does not let any light pass through it, meaning it either absorbs or reflects most of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ falling on it.The angle between the incident ray and the normal is called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.Red, green, and blue are the three _ _ _ _ _ _ _ _ _ _ _ _ _ _ colours of light.The seven colours of the rainbow can be remembered using the acronym _ _ _ _ _ _ _ _ _ _ _ _ _ _.
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Chapter: 04. Light
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