Question

Due to which phenomena the combination of red, green and blue forms the same white colour
A. Due to persistence of vision
B. Due to refraction
C. Due to reflection
D. Due to deviation

Answer 1

A colour wheel is an abstract illustrative arrangement that displays the connection between basic colours, secondary colours, tertiary colours, etc. Some publications interchangeably use the phrases colour wheel & colour circles, however in specific fields or in some versions as noted above, one name or another may be more widespread.

Complete answer:
A rainbow is a meteorological phenomena created by reflection and refraction in water droplets which lead to a range of light coming into the air. It's like a circular arch in multicolour. In the part of the sky opposite to the Sun, reinbows created by sunlight always emerge. Full circles can be Rainbows.

The spectator usually only sees an arc created by lighted goplets above the ground, which is focused on the line from the sun to the eye of the observer. The mixture of red, green and blue shapes the same blue hue due to visual persistence. Persistence of vision refers traditionally to optical illusion when the visual perception of an object does not stop for a while following the end of the light rays from the item.

When movement is too quick to record data, colours on the revolving tops or wheels mix together. A coloured dot then appears as a circle and a line can provide a consistent colour of the full surface. When it rotates quickly, the Newton disc optically blends wedges of primary colours of Isaac Newton to a unique (of-)white surface.

Hence option A is correct.

Note: The Newton Disk, also known as the Disappearing Color Disk, is a well-established physics experiment featuring segments in several hues (typically primarily Newton's: red, orange, yellow, green, blue, indigo, violet or ROYGBIV) emerging in white while spinning very quickly.