Question
A disc, consisting of seven colours, is mounted on a stand as shown below.
On rotating the disc fast, it will appear
A disc, consisting of seven colours, is mounted on a stand as shown below.
On rotating the disc fast, it will appear
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Solution
The correct option is C white
White light is composed of seven colours - red, orange, yellow, green, blue, indigo and violet. When these seven colours are combined, we get white light. So, when the disc is rotated fast, it will appear white.
white
White light is composed of seven colours - red, orange, yellow, green, blue, indigo and violet. When these seven colours are combined, we get white light. So, when the disc is rotated fast, it will appear white.
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A disc in which seven rainbow colours equally spread over an area, which on rotation, fades to white colour is called:
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