11.
The splitting of white light into its components is due to:

12.
Which of the following is used to split white light into different colours ?

15.
The splitting of different colours of light in a prism is :

16.
Mist is caused by

18.
In sunlight a rose appears red. In green light, the same rose appears

19.
When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is

20.
Which combination of colour is the most convenient during day and night time ?