Question
State the various uses of a periscope.
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Answer
$-$A periscope is used to see over, through or around any object.
$-$It can be used to see over a wall, to see around a corner.
$-$Periscopes are also used in warfare to keep an eye on the enemy.
$-$It can be used to see over a wall, to see around a corner.
$-$Periscopes are also used in warfare to keep an eye on the enemy.
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