Question

Objective Questions
Choose the correct option.
1. When viewed in red light a white rose
appears to be
(a) red
(b) blue
(c) black
(d) white
2. When blue light is subtracted from white
light, the resultant colour is
(a) red
(b) cyan
(c) magenta
(d) vellow
3. Red and blue lights mixed inequal proportion
produce
(a)yellow
(b)blue
(c)cyan
(d)magenta​

Answer 1

Answer:

1. (a) red

2. (d) yellow

3. (d) magenta

Explanation:

1. The white light consists of all the seven colors of the rainbow. Hence, if anything appears white, it means that it reflects each and every color. Now, though if only red light is incident on such objects (here white rose), it will reflect the red color.

2. White light can be represented as a mix of three colors, red, green and blue. Now, if blue light is subtracted, shades of red and green remain. For their combination, please refer to the attachment.

3. Please see the attachment.