Tuesday, June 23, 2020

Periscopes

L.I. To explain how periscopes work


Mr Johnston came and taught us  what periscopes are, how they are used and uses them. We found out that the angle of incidence equals the angle of reflection. That means if the light hits the mirror at 45 degrees it reflects the light back at 45 degrees. It was fun because if light goes into a mirror it can bounce back.

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