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Physics CBSE Live product
Class 7 (2025-26)
Light: Shadows and reflections
Pinhole camera, periscope and kaleidoscope
3.
Periscope
Question:
2
m.
Choose the correct answer below:
1.
What shape is the box used to make a basic periscope?
U-shaped
Z-shaped
L-shaped
O-shaped
2.
Why can soldiers use a periscope in bunkers or tanks?
It allows them to see outside without exposing themselves
It increases the size of the battlefield
It provides night vision
It records video
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