Splitting of Sunlight

Q.

Red, blue and green are called primary colors of light.

Q. Red, orange, yellow, green, blue, indigo and violet lights combine to give _____.

1. white colour

2. black colour
   

3. grey colour
   

4. crimson colour
   

Q.

What color is obtained when the light of red, blue, and green colors is incident on a white screen?

Q.

A disc, consisting of seven colours, is mounted on a stand as shown below.

On rotating the disc fast, it will appear

1. yellow

2. white

3. black

4. blue

Q. Which of the following can combine the seven different colours (VIBGYOR) into white light?

1. Concave lens
2. Prism
3. Newton's disc
4. Convex lens

Q. Which of the following is not involved in Rainbow formation?
(1) Refraction
(2) Internal Reflection
(3) Total Internal Reflection
(4) Dispersion

Q.

The formation of a rainbow shows that

1. A rainbow is a source of light.
2. Sunlight is composed of seven colours.

1. Only 1

2. Only 2

3. Both 1 and 2

4. Neither 1 nor 2

Q.

Lights of three different colors, mixed together to give white light

Q. if we remove a colour from the colours on newtons disc, will it still appear white when rotated? give reason.

Q.

What will be the colour of a yellow object seen under blue light?