Put a check √ if the optical technology is using the mirror/lens and X if Not used in the technology.

Convex lens

Concave lens

Convex mirror

Concave mirror


Plane mirror
Optical Technology
1. dentists’ mirror
2. shaving or make-up mirror 3. security mirror in Groceries 4. side mirror in cars
5. collectors of solar energy 6. reflectors in search lights 7. head lights of vehicles
8. magnifying glass
9. reflector telescope
10. satellite dish
11. solar cookers
12. eyeglasses
13. camera
14. simple microscopes
15. periscope