Recombination of Light

Q.

What is the order of the seven colors that we see after dispersion through a glass prism?

1. violet indigo red green blue orange yellow

2. red orange yellow violet indigo blue green

3. violet indigo blue green yellow orange red

4. red yellow indigo blue violet green orange

Q.

The seven coloured lights of the spectrum can be recombined when two prisms are placed in

1. Horizontal position with respect to each other

2. Inverted position with respect to each other

3. Vertical position with respect to each other

4. Adjacent position with respect to each other

Q. Which is the complementary colours of blue colour ?

1. Red
2. Yellow
3. Green
4. Magenta

Q. Fill in the blanks with the appropriate colour
(a) Blue + ......... = Cyan
(b) Red + Blue + ....... = White
(c) Red + Blue = ..........
(d) Green + Red = ..........

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

1. Green
2. Magenta
3. Cyan
4. Yellow

Q.

What is the order of the seven colors that we see after dispersion through a glass prism?

1. Violet indigo red green blue orange yellow

2. Violet indigo blue green yellow orange red

3. Red yellow indigo blue violet green orange

4. Red orange yellow Violet indigo blue green

Q. The seven colors in the spectrum of sunlight in order, are represented as :

1. VIBGYOR
2. BIVGYOR
3. RYOBIVG
4. VIGYBOR

Q. What are composite colours?

1. Colours produced by mixing two or more primary colours, in proper proportions.
2. Colours which combine easily with primary colours
3. Tertiary colours when mixed in proper proportions
4. None of these