Question

1. Answer the following:
1. How do we see objects around us? (2)
2. Can light travel in vacuum? (1)
3. State whether light slows down or speeds up in the following cases: (3)
(a) Light going from air to glass.
(b) Light going from water to air
(c) Light going from glass to water,
4. Fill in the blanks with the appropriate colour. (4)
(a) Blue +
Cyan
(b) Red + Blue +
- White
(c) Red +
Magenta
(d) Green + Red​

Answer 1

Answer:

1. by the help of light

2. yes

3. I don't know answer

4. I don't know answer

Explanation:

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Answer 2

Answer:

1. by the reflection of light .

2.no sound and light can't travel in vaccum.

3.speed up

speed up

slow down..