Q1 of 40 Page 60

Which colours are reflected when white light is incident upon blue pigment?

When the white light is incident on the blue pigment Violet, Green, Blue are reflected while the other colours are absorbed. This is known as colour subtraction.

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1

Which colour is obtained by mixing the blue and red colours?

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The focal length of an eye lens is changed due to the action of ----------------.

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---------- lens is used to correct the defect of vision termed as presbyopia.

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Which phenomenon does not play a role in the formation of rainbow?