For seeing objects at the surface of water from a submarine under water, the instrument used is Options: A . &nbspkaleidoscope B . &nbspperiscope C . &nbspspectroscope D . &nbsptelescope

For seeing objects at the surface of water from a submarine under water, the in

Question

For seeing objects at the surface of water from a submarine under water, the instrument used is

Options:

A . kaleidoscope

B . periscope

C . spectroscope

D . telescope

Answer: Option B

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