Optics part (3)

The colour of an opaque object is the same as the colour of the light that is reflected by it. Opaque object doesn't pass the light through it. It absorbs part of incident light and reflects the other part.

The cathode ray tube (CRT), which is used in colour television uses three different phosphors which emit red, green and blue light respectively. They are packed together in stripes or clusters called "triads".

The cathode ray tube (CRT), which is used in colour television uses three different phosphors which emit red, green and blue light respectively. They are packed together in stripes or clusters called "triads".

Red green and blue are referred to as the primary colour of light.because we add them together to create a colour we call them additive colour.cyan magenta and yellow are called the subtractive colour because we create colour by using them to subtract colour from white light .If we add all the 3 primary colours of light in equal proportions we obtain white colour light.

Black is not a primary colour in a painting red yellow and the blue are primary colours but in terms of physics and light primary colours are red green and blue.

Black is not a primary colour in a painting red yellow and the blue are primary colours but in terms of physics and light primary colours are red green and blue.

If we mix red, green and blue colour, we get the white colour. Red, green and blue is referred to as the primary colors. Similarly cyan, magenta and yellow are referred to as the primary pigment colors. If we mix magenta and yellow we get the red colour. Hence, statement 1 is correct. Similarly if cyan and magenta colours are mixed together we get blue color. Thus, statement 2 is also correct. If we mix cyan and yellow we get the green colour.

The correct matched list are as follows :

As we all know the sunlight is a white light and it consists of seven colours. The splitting of light into its different components (VIBGYOR) i.e. violet, indigo, blue, green, yellow, orange and red is called the dispersion of light. A prism is used to disperse light into its different components.

The brown color is an odd colour. It is because of the concept of VIBGYOR. As we know that white light is the mixture of seven colours- red, orange, yellow, green, blue, indigo and violet. Thus brown doesn't belong to this combination.