In the periscope experiment, why is it important for the top mirror to have its reflecting surface facing down and the bottom mirror to have its reflecting surface facing up?
1 )
To ensure the image seen through the periscope is upright
2 )
To maximize the amount of light reflected through the periscope
To create a path for light to travel from the object to the observer’s eye
4 )
To prevent the mirrors from getting dusty inside the periscope
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