Q.1.
A red filter will only:
Q.2.
The three primary light colours are:
Q.3.
Colours are caused by light having different:
Q.4.
When light travels from air to glass at any angle other than ninety degrees, which of the following is true?
Q.5.
Light from the Sun is called:
Q.6.
Which of the following statements about light travelling from air to water is true?
Q.7.
Why does grass look green in daylight?
Q.8.
Light can be split into colours of the spectrum using a prism. What is this process called?
Q.9.
In a solar eclipse, which of the following is true?
Q.10.
When light travels from air to glass it does which of the following?