Question

1. a medical condition causes a short-
sightedness
(b) Complete the following crossword,
Down
9
Across
up
4. a line drawn between the point where
the incident ray and reflected ray
meet
2. sources of light are available in
nature
7. a beam of light falling on the plane
surface
3. a band of colours produced when
white light is split up
5. an object that emits light by itself
6. a device works on multiple
reflections
2
1
3
4
15
16
7
HBA.​

Answer 1

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